When looking at the details of a UObject contained in a Data Asset, some categories are shown even though they should not be. If a category is marked as hidden in the parent class, it will be shown in the Data Asset (though variables in that category will not be shown). In addition, if a variable had been added to a category and subsequently deleted so that there are no longer any variables contained in that category, the category will still be displayed in the Details panel.
REGRESSION:
Yes. In 4.20.3, hidden categories and categories that no longer contain any variables are not shown in the Details panel.
RESULT:
The "Do Not Show" category is shown, but the bool variable in that category is not shown. Both of the categories for the additional variables that were created and then deleted also appear even though there are no longer any variables contained in either category.
EXPECTED:
Only the Default category is shown.
There's no existing public thread on this issue, so head over to Questions & Answers just mention UE-66427 in the post.