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Is anyone else experiencing issues with Cognos after the latest Chrome update

  • 1.  Is anyone else experiencing issues with Cognos after the latest Chrome update

    Posted 07/01/26 02:32 PM

    I am currently experiencing issues on both my Cognos 11.2.4 and Cognos 12.0.4 environments after Chrome updated to versions 150.0.7871.46 / 150.0.7871.47. 

    I am still able to run reports, but I can no longer edit them. 

    When I switch into edit mode, I get the error 'Module metadata request failed' in Cognos 11.2.4. 

    In Cognos 12.0.4, I get a slightly different error. 

    I have noticed in both versions, the data package does not load. Also, the columns in the list are missing their headers. 



    ------------------------------
    E. Johnson
    ------------------------------


  • 2.  RE: Is anyone else experiencing issues with Cognos after the latest Chrome update

    Posted 07/02/26 03:40 AM

    Yeah, I've been dealing with this too. So far it looks like it's a predominantly developer issue. You can still run reports as usual, so for the most part the impact on end-users should be minimal. 

    That being said, pretty much all custom controls are messed up. The configuration isn't being passed to the oControlObject. This is the workaround I've found:

          draw (oControlHost) {
            let o = oControlHost.configuration;
            if(!o) o = JSON.parse(oControlHost.xmlElement.querySelector('configuration').text)

    If the configuration isn't found, try to retrieve it from the xmlElement. 

    So far I've tried a ton of different settings, with no luck. 

    1. chrome.exe --disable-site-isolation-trials --disable-features=IsolateOrigins,site-per-process --disable-web-security
    2. I've tried disabling the following flags
      1.  Enable Isolated Web Apps
      2.  Enable Process Isolation UI
      3.  Block scripts loaded via document.write
      4.  Strict-Origin-Isolation
      5.  Origin-keyed Processes by default
      6.  Isolated sandboxed iframes

    Not seeing any blocked requests or js errors in the console. So I'm not entirely sure what is the underlying cause. Maybe a timing issue? 



    ------------------------------
    Paul Mendelson Product Manager
    Product Manager
    PMsquare
    ------------------------------



  • 3.  RE: Is anyone else experiencing issues with Cognos after the latest Chrome update

    Posted 07/02/26 08:55 AM

    We are also facing the same problem with Version 12.1.1. Chrome Version 150.0.7871.47 does not work.



    ------------------------------
    Jörn Maschmann
    DBA
    ARI-Armaturen Albert Richter GmbH & Co. KG
    Schloß Holte-Stukenbrock
    ------------------------------



  • 4.  RE: Is anyone else experiencing issues with Cognos after the latest Chrome update

    Posted 07/02/26 09:35 AM

    Same here.  I'm on 12.03 but end users can't download the report in Chrome and getting error. All ok in Edge.



    ------------------------------
    Lyn Aung
    ------------------------------



  • 5.  RE: Is anyone else experiencing issues with Cognos after the latest Chrome update

    Posted 07/02/26 11:22 AM

    Having the same issues after upgrading to Chrome version 150. My Test Cognos environment is 12.1.3 and my PROD Cognos environment is 12.0.4.

    • Errors when opening reports in edit mode
    • Data packages not loading properly
    • Missing column headers in report authoring screens
    • Metadata-related errors during editing

    Below is the error when I switch to Page preview, it gave me the server error

    It is working fine so far for me using Edge and Firefox

    Thanks,

    Abbas



    ------------------------------
    [Abbas] [Alnamar]
    [Data Management and Analytics System Administrator]
    [Emporia State University]
    [Kansas, USA]
    ------------------------------



  • 6.  RE: Is anyone else experiencing issues with Cognos after the latest Chrome update

    Posted 07/15/26 09:44 AM
    Hello everyone,
    Google just put out a patch that fixes the issues. If you update your Chrome to Version 150.0.7871.125, it resolves the bugs we were seeing like the report edit errors, and those annoying server errors in Page Preview.
    If your Chrome hasn't updated on its own yet, you can force it manually:
    1. Click the three dots in the top right corner of Chrome.
    2. Go down to Help and click About Google Chrome.
    3. Chrome will automatically scan for the update and download it.
    4. Just click Relaunch when it finishes to apply the fix.

    Thank you,

    Abbas



    ------------------------------
    [Abbas] [Alnamar]
    [Data Management and Analytics System Administrator]
    [Emporia State University]
    [Kansas, USA]
    ------------------------------



  • 7.  RE: Is anyone else experiencing issues with Cognos after the latest Chrome update

    Posted 07/02/26 02:49 PM

    Hi, 

    I opened a case and IBM has confirmed that is a issue with Chrome 150.

    The recommendation is downgrade to version Chrome 149 and disable  GoogleUpdaterService and GooglUpdaterInternalService in Windows to avoid automatically updates.



    ------------------------------
    Jeam Coelho
    Cognos Solution Architect

    IBM Champion

    LinkedIn: https://www.linkedin.com/in/jeamcoelho/
    ------------------------------



  • 8.  RE: Is anyone else experiencing issues with Cognos after the latest Chrome update

    Posted 07/02/26 03:07 PM

    Hi Jeam,

    Thanks for sharing what IBM said and the workaround!

    That definitely helps for the short term, but I do worry about the long term plan here. Did IBM mention if they're actually working on a fix for Cognos to support Chrome 150?

    Downgrading and completely turning off the Google update services is going to be a really tough sell for a lot of IT teams. Most organizations just won't let employees disable those updates because missing out on browser security patches is too big of a risk.

    Thanks,

    Abbas



    ------------------------------
    [Abbas] [Alnamar]
    [Data Management and Analytics System Administrator]
    [Emporia State University]
    [Kansas, USA]
    ------------------------------



  • 9.  RE: Is anyone else experiencing issues with Cognos after the latest Chrome update

    Posted 07/02/26 04:22 PM

    Hi,

    IBM didn't tell me an ETA. 

    In last 5 years, it's second time that Google Chrome breaks Cognos users, as far as I recall.

    I have been using Firefox since early 10's 😁 I'm glad with that.



    ------------------------------
    Jeam Coelho
    Cognos Solution Architect

    IBM Champion

    LinkedIn: https://www.linkedin.com/in/jeamcoelho/
    ------------------------------



  • 10.  RE: Is anyone else experiencing issues with Cognos after the latest Chrome update

    Posted 07/03/26 02:50 AM
    Edited by Thomas Grunewald 07/03/26 02:51 AM

    Almost same issue at out side (v12.0.4 FP1), metadata load is blank, if i try to add a source i receive this error with chrome Version 150.0.7871.47 (Official Build) (64-bit):

    Source remains empty:

    In other browsers: firefox, edge its working fine.

    I'll create a ticket to IBM, too.

    One question: is this fixed already with v12.1.3?

    best regards

    Thomas



    ------------------------------
    Thomas Grunewald
    ------------------------------



  • 11.  RE: Is anyone else experiencing issues with Cognos after the latest Chrome update

    Posted 07/03/26 08:02 AM

    It is happening with 12.1.3 also. I suspect it's an issue with the way chrome now handles iframes. Since reports are all rendered in iframes they're the only thing erroring out. So far I haven't seen any issues with dashboards.

    I'm still trying to find possible solutions, but the obfuscated code really makes it a headache. Since the error seems to be happening with the metadata load across iframes, I was thinking I could inject something that handles it in a chrome-approved way, but haven't had any success yet. We probably need to wait for IBM to issue a patch.



    ------------------------------
    Paul Mendelson Product Manager
    Product Manager
    PMsquare
    ------------------------------



  • 12.  RE: Is anyone else experiencing issues with Cognos after the latest Chrome update

    Posted 07/06/26 09:53 AM
    IBM Source Group,

    Great! Now all we need is a meeting place to build our analytics and exchange information to each other.

    Denise Lewis
    747-204-9075
    SELF-LLC





  • 13.  RE: Is anyone else experiencing issues with Cognos after the latest Chrome update

    Posted 07/06/26 06:21 AM

    I've identified at least part of the problem. Chrome now behaves differently when executing

    querySelectorAll(':not(:empty, [*|space="preserve"], [*|space="default"])')

    In Firefox when I run that against a specific report XML I get 115 nodes.

    But in Chrome that returns 128 nodes. 

    When I filter out the ones in common, what's left are the corrupted objects:

    In Chrome that text item appears empty, but in Firefox I see the static text. So that means I'm able to at least locally patch this issue by going in and changing the file directly. 

    This doesn't solve the issue with the list headers disappearing and the data source being empty, but it's a start.



    ------------------------------
    Paul Mendelson Product Manager
    Product Manager
    PMsquare
    ------------------------------



  • 14.  RE: Is anyone else experiencing issues with Cognos after the latest Chrome update

    Posted 07/06/26 10:25 AM

    And I've found the reason why the list headers aren't appearing. 

    Let's take this code:

    xmlstring = `<!DOCTYPE report [
      <!ELEMENT modelPath (#PCDATA)>
      <!ATTLIST modelPath
    xml:space (default | preserve) "preserve"
    type (FM | module | report) "FM"
    >
    ]>
    <report useStyleVersion="11.6" expressionLocale="en">
      <modelPath>/content/package[@name=&#39;GO Sales (query)&#39;]/model[@name=&#39;model&#39;]</modelPath>
    </report>`
    
    
    xmlXml = (new DOMParser()).parseFromString(xmlstring, "text/xml");
    
    
    console.log(xmlXml.querySelector('modelPath').outerHTML)
    In Firefox that returns <modelPath xml:space="preserve" type="FM">/content/package[@name='GO Sales (query)']/model[@name='model']</modelPath>
    In Chrome that returns <modelPath>/content/package[@name='GO Sales (query)']/model[@name='model']</modelPath>
    So Firefox is taking the DTD and is applying the default attributes to each element, but Chrome is not. 
     
    The datasource window is failing because it doesn't know what type it is. And list headers aren't appearing because Report Studio checks for the "showListHeaders" on lists. If it's not explicitly defined, the attribute is missing because it should be populated with the default value from the DTD. 
    It looks like these two changes in how Chrome handles XML, querySelectorAll and parseFromString, is responsible for pretty much all of the issues we're seeing.


    ------------------------------
    Paul Mendelson Product Manager
    Product Manager
    PMsquare
    ------------------------------



  • 15.  RE: Is anyone else experiencing issues with Cognos after the latest Chrome update

    Posted 07/07/26 03:17 AM

    Great pickup Paul.

    It looks like it is related to this: https://issues.chromium.org/issues/531506229

    So ultimately the problem is their project to move XML handling to use the Rust library xml-rs, which ignores DTDs entirely.

    It looks like it can (for now) be worked around by disabling this feature. It's weird that this isn't exposed under chrome://flags but this works for me:

    chrome.exe --disable-features=XMLRustForNonXslt



    ------------------------------
    Sam Angove
    ------------------------------



  • 16.  RE: Is anyone else experiencing issues with Cognos after the latest Chrome update

    Posted 07/07/26 04:16 AM

    Awesome! I was hoping there was a flag like that, but after I did my digging last night I had no energy to find it. Great find! 



    ------------------------------
    Paul Mendelson Product Manager
    Product Manager
    PMsquare
    ------------------------------



  • 17.  RE: Is anyone else experiencing issues with Cognos after the latest Chrome update

    Posted 07/09/26 09:00 AM

    so does starting chrome with this switch resolve the issue? obviously not a permanent fix, but will allow the packages to be loaded for editing reports and creating new reports?



    ------------------------------
    brenda grossnickle
    BI Programmer Analyst
    FIS
    ------------------------------



  • 18.  RE: Is anyone else experiencing issues with Cognos after the latest Chrome update

    Posted 07/09/26 09:50 AM

    Chromium team has confirmed the root cause. They traced it to a new Chrome feature, XMLRustForNonXslt (field trial XMLParsingRustNonXslt) - Chrome's new Rust-based XML parser, which no longer applies the DTD default attribute values Cognos report specs rely on. 

    Interim workaround: use Firefox (recommended), stay on Chrome ≤149, or launch Chrome with the new parser disabled. Fully quit Chrome first, then:

      Windows (cmd):  start chrome --disable-features=XMLRustForNonXslt
     
     Mac:            open -a "Google Chrome" --args --disable-features=XMLRustForNonXslt
      
    Linux:          google-chrome --disable-features=XMLRustForNonXslt


    Note: there are no chrome://flags or policy toggle for it - the command-line launch is the only off-switch.



    ------------------------------
    Pedro Jose Salguero Aguilar
    ------------------------------



  • 19.  RE: Is anyone else experiencing issues with Cognos after the latest Chrome update

    Posted 07/09/26 10:26 AM
    Edited by brenda grossnickle 07/09/26 10:28 AM

    i know it is probably redundant, but can you use the Target in a ShortCut instead of the Windows Command? Using the target does not seem to work for me, and the windows cmd does work. but, we are having issues with our development cognos at the moment so not a reliable test. and thinking about it more, not sure that i closed all chrome windows for each of the test. 

    My shortcut Target

    "C:\Program Files (x86)\Google\Chrome\Application\chrome.exe" --disable-features=XMLRustForNonXslt



    ------------------------------
    brenda grossnickle
    BI Programmer Analyst
    FIS
    ------------------------------



  • 20.  RE: Is anyone else experiencing issues with Cognos after the latest Chrome update

    Posted 07/09/26 10:45 AM

    Hey Brenda,

    for me it's not working, too:

    "C:\Program Files\Google\Chrome\Application\chrome.exe" --disable-features=XMLRustForNonXslt

    Not as Shortcut, not via cmd Command Prompt.

    What can i have done wrong?

    best regards

    Thomas



    ------------------------------
    Thomas Grunewald
    ------------------------------



  • 21.  RE: Is anyone else experiencing issues with Cognos after the latest Chrome update

    Posted 07/09/26 12:42 PM

    did you close all chrome windows prior to start up chrome with the switch? i think that was my issue.



    ------------------------------
    brenda grossnickle
    BI Programmer Analyst
    FIS
    ------------------------------



  • 22.  RE: Is anyone else experiencing issues with Cognos after the latest Chrome update

    Posted 07/06/26 09:52 AM

    Hi,

    I can confirm similar issues for v12.0.3 IF1 when upgrading Google Chrome from 149.0.7827.201 to version 150.0.7871.47



    ------------------------------
    Wouter Mertens
    Acumen
    wouter.mertens@acumendc.eu
    ------------------------------



  • 23.  RE: Is anyone else experiencing issues with Cognos after the latest Chrome update

    Posted 07/08/26 02:15 AM
    Edited by Patrick Neveu 07/08/26 04:38 AM

    Hi,

    Here is the Known Issue (KI) from IBM support:
    https://www.ibm.com/mysupport/s/defect/aCIgJ000000FlEjWAK/dt475269

    (Link is now working)


    This record has been marked High Impact Pervasive (HIPER). 𝗔 𝗛𝗜𝗣𝗘𝗥 𝗞𝗻𝗼𝘄𝗻 𝗜𝘀𝘀𝘂𝗲 𝗱𝗲𝘀𝗰𝗿𝗶𝗯𝗲𝘀 𝗮 𝘀𝗲𝗿𝗶𝗼𝘂𝘀 𝗽𝗿𝗼𝗯𝗹𝗲𝗺 𝗼𝗿 𝗮 𝗽𝗿𝗼𝗯𝗹𝗲𝗺 𝘁𝗵𝗮𝘁 𝗶𝗺𝗽𝗮𝗰𝘁𝘀 𝗺𝗮𝗻𝘆 𝗰𝘂𝘀𝘁𝗼𝗺𝗲𝗿𝘀.

    Best regards,



    ------------------------------
    Patrick Neveu
    BSL Consulting
    IBM Champion
    ------------------------------



  • 24.  RE: Is anyone else experiencing issues with Cognos after the latest Chrome update

    Posted 07/08/26 04:34 AM

    Hi Patrick,

    Can you reload the link? Doesn't seem to work.



    Thanks!



    ------------------------------
    F A
    ------------------------------



  • 25.  RE: Is anyone else experiencing issues with Cognos after the latest Chrome update

    Posted 07/08/26 04:40 AM

    Hi F A,

    I've updated the link. Thank you for your message.

    Best regards,



    ------------------------------
    Patrick Neveu
    BSL Consulting
    IBM Champion
    ------------------------------



  • 26.  RE: Is anyone else experiencing issues with Cognos after the latest Chrome update

    Posted 07/08/26 10:46 AM
    Performing a complete uninstall and reinstall of Google Chrome may resolve the problem.
    The recommended steps are outlined below:
    Step 1: Uninstall Google Chrome
    Windows 10/11
    1. Close all Chrome browser windows.
    2. Open Settings > Apps > Installed apps (or Apps & features).
    3. Locate Google Chrome, select Uninstall, and confirm the prompt.
    4. If prompted, select Also delete your browsing data for a complete removal.
    macOS
    1. Quit Google Chrome completely.
    2. Open Finder > Applications.
    3. Right-click Google Chrome and select Move to Trash.
    Step 2: Remove Residual Chrome Files (Recommended)
    Windows
    1. Press Win + R.
    2. Enter %LOCALAPPDATA%\Google and press Enter.
    3. Delete the Chrome folder if it exists.
    4. Also check and remove any remaining Google folders under:
    o C:\Program Files\Google
    o C:\Program Files (x86)\Google
    5. Restart your computer.
    macOS
    1. In Finder, press Cmd + Shift + G.
    2. Navigate to ~/Library/Application Support/Google/.
    3. Delete the Chrome folder.
    4. Restart your computer.
    Step 3: Reinstall Google Chrome
    1. Open an alternate browser such as Microsoft Edge, Safari, or Mozilla Firefox.
    2. Download the latest version of Google Chrome from the official Google Chrome download page.
    3. Run the installer and follow the on-screen instructions.
    4. After installation, sign back into your Google account to restore your bookmarks, passwords, and extensions.
     
    Please let me know if you need any additional information or have any questions.


    ------------------------------
    Nabin Poudyal
    ------------------------------



  • 27.  RE: Is anyone else experiencing issues with Cognos after the latest Chrome update

    Posted 07/08/26 02:54 PM

    Thanks! Curious to know if it has worked for anyone?



    ------------------------------
    PKS
    ------------------------------



  • 28.  RE: Is anyone else experiencing issues with Cognos after the latest Chrome update

    Posted 07/08/26 06:12 PM

    Hi Nabin,


    I did not see the steps where you save all the Chrome data for this Windows or Mac user.

    Best regards,



    ------------------------------
    Patrick Neveu
    BSL Consulting
    IBM Champion
    ------------------------------



  • 29.  RE: Is anyone else experiencing issues with Cognos after the latest Chrome update

    Posted 07/09/26 03:25 AM

    Just a note. I tried FF 152.0.4 and the report editing works, but the switcher is gone. 



    ------------------------------
    Michael Haass
    Germany
    ------------------------------



  • 30.  RE: Is anyone else experiencing issues with Cognos after the latest Chrome update

    Posted 07/09/26 11:10 AM

    The specific chrome version posing the issue for me- Chrome Version 150.0.7871.102 (Official Build) (64-bit)

    I do not see the same issues with Chrome Version 149.0.7827.201 (Official Build) (64-bit)



    ------------------------------
    PKS
    ------------------------------



  • 31.  RE: Is anyone else experiencing issues with Cognos after the latest Chrome update

    Posted 07/09/26 12:24 PM

    Hi,


    The same issue is still true with Chrome 150.0.7871.115. The only viable solution (if you think about security: you cannot reuse a previous version of Chrome and you cannot disable an existing feature in Chrome) is to choose another supported browser for the time being.

    Best regards,



    ------------------------------
    Patrick Neveu
    BSL Consulting
    IBM Champion
    ------------------------------



  • 32.  RE: Is anyone else experiencing issues with Cognos after the latest Chrome update

    Posted 07/10/26 04:51 AM

    Yet it's not the Chromium engine per se. Edge  150.0.4078.48 works fine. 

    That one is not my favourite Browser, but on a Windows machine I simply have it at hand.



    ------------------------------
    Thomas Wolf
    BI Professional
    Techniker Krankenkasse
    Hamburg
    ------------------------------



  • 33.  RE: Is anyone else experiencing issues with Cognos after the latest Chrome update

    Posted 07/14/26 01:12 PM

    A client I work with has advised that Google is releasing a minor update to Chrome v150 as early as tomorrow to resolve this issue.



    ------------------------------
    Robert Hofstetter
    ------------------------------



  • 34.  RE: Is anyone else experiencing issues with Cognos after the latest Chrome update

    Posted 07/14/26 10:23 PM
    Edited by Jeam Coelho 07/14/26 10:59 PM

    Actually, it has already delivered. And working! 😀

    150.0.7871.125



    ------------------------------
    Jeam Coelho
    Cognos Solution Architect

    IBM Champion

    LinkedIn: https://www.linkedin.com/in/jeamcoelho/
    ------------------------------