Hi,
We have already raised PMR for this issue.
We are displaying 2 attachments for the work item task (Inbox or Queue), they are called as Source and Published.
The Source is the initiating Attachment which is initially mapped to the WF during Launch
The Published is an Attachment field which is updated later in the workflow as part of flow
For the migrated WFs whose execution was open in 5.1 and now present in 5.5.4, the Published attachment is missing from the Inbox or Queue page, while the Source Attachment is perfectly visible and accessible.
Also to note here is that, any new WFs which we launch in 5.5.4, the value Attachments are seen for both Source and Published and accessible.
We use ICN 3.0.6 as the front end and below is the observation seen from the JSON response file generated on opening the Inbox,
#IBMContentNavigator(ICN)#Support#SupportMigration