Starting with 11.2.2 there is a menu item which will refresh the properties of columns in your data module. It is available for individual columns, tables, stand alone calculations, folders, and the entire module itself.
Here is the documentation of it:
https://www.ibm.com/docs/en/cognos-analytics/11.2.0?topic=properties-refreshing
I've written a blog about it here:
https://community.ibm.com/community/user/businessanalytics/blogs/ian-henderson1/2022/03/11/synchronizing-data-source-metadata-changes-to-upda
If you don't want to move to 11.2.2 then you can force metadata refreshing by going into the properties slide out for each column whose metadata you want to refresh and click on the view or edit button (it looks like a link). This will bring up the expression editor for the column. Press the space bar once to add a blank space to the expression. It should enable the OK button. Press OK. This make a metadata callback to the schema (or uploaded file or data set) and the refreshed metadata will be fetched. I think that is what you have been trying.
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IAN HENDERSON
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