Show comment by default in the comment history if there is no comment added remove the space.

Hm ... your local would only react on the first comment being empty. But not for every item in the list. So you will have to check the comment being empty inside each element.

Why isn't your "showWhen" condition checking the existence of the same plaintext you're displaying in your "richTextItem" component?  That's step 1, if you want each comment cell's visibility to be determined by the contents of that cell (rather than, as Stefan mentioned already, the contents of just the first item in the list).

Why not just do an isNullOrEmpty on the relationship for isCommentAvailable?

Hi [mention:0b7bd2212f78464d91d9e8df64047db1:e9ed411860ed4f2ba0265705b8793d05] ,

We should use a!isNotNullOrEmpty() for the specific item in the comments section. The expression a!isNotNullOrEmpty(fv!item[comment]) will display the comment data if a comment is present; otherwise, it will not display anything. we can handle this using Rich Text by writing a condition at showWhen to manage the display logic.

for logic go through this (Appian Community)