Hi @Anonymous ,
Is that a screenshot from DataTable or Gallery control in your application? Wich displays records from the List and Collection respectively?
If yes, then you can't display Author or Editor directly in the Label fields of DataTable or Gallery.
You have to use either Author.DisplayName or (Email, claims, Jobtitle, Department, Picture (in image control), etc. ) of the Author or Editor to display it on the table.
(ex. ThisItem.'Created By'.DisplayName &
ThisItem.Author.DisplayName &
ThisItem.Author.Email &
ThisItem.Author.Department, etc.
).
If there is any Lookup or choice field then append ThisItem.FieldName.Value
Refer screenshot below,

There is no error in "ClearCollect(CollectDemo,TestDemo)" here "CollectDemo" is Collection & "TestDemo" is List.
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