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Power Platform Community / Forums / Power Apps / Unknown render failure...
Power Apps
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Unknown render failure. Cannot read properties of undefined (reading ‘ProgId’)

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Posted on by FP-20110808-0 2
Hi. It seems Microsoft Lists was updated today in my company, the list website looks a bit different and refreshed, the views are now shown in tabs, however this is causing an error when we edit an item from lists that have a custom form in Power Apps. Once we save the item, the data's is saved and we are redirected to a page saying: Unknown render failure. Cannot read properties of undefined (reading ‘ProgId’). I couldn’t find anything about this error online. I haven’t changed anything in the form recently. This error wasn’t happening yesterday and it’s now happening with 2 different lists. Can someone assist?
Categories:
Power Apps Pro Dev & ISV
I have the same question (2)
  • CF-20111959-0 Profile Picture
    CF-20111959-0 2 on at
    I am experiencing the same.
  • bblack Profile Picture
    bblack 4 on at
    Same issue here with a custom SharePoint form. This is affecting a heavily used list! 😑
  • Suggested answer
    FP-20110808-0 Profile Picture
    FP-20110808-0 2 on at
    I found out that this is caused because one or more of the views has a grouping, if you disable the grouping the issue is resolved. I've logged this in M365 forums as well: https://answers.microsoft.com/en-us/msoffice/forum/all/unknown-render-failure-cannot-read-properties-of/ce1d65fb-9314-49b4-bd78-0516db9794f7?messageId=d70ac8aa-9a17-4024-9041-91c751292ad2.

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