Just Adding a Entry here as I can’t reproduce this issue yet but I have seen it several times as has a team member. When Editing a Row-Update Columns collection in Application Studio. It will create a equal number of blank Parameters as the number of columns you have in your column collection. Application studio does not show this at first but if you exit and reopen you can see and delete the extra parameters.
We are current Validating 2025.2 and working in App Studio to uplift our classic pages. Sorry if this is a know issue I could not find anything on it. Feel free to either file it with Epicor if anyone can figure out how to reliably reproduce the issue or reply here.