NEVER MIND. Looks like formula level error management did work. It just took some time to kick in.
Not sure how to delete a post here.
I have a SharePoint Asset List for employee assets. When the employee leaves and the asset becomes available, I need to change the FULL NAME field to blank. Removing the name with the Power App doesn't take hold and the user's name remains.
This FULL NAME field is a Lookup from another list of employees. The Asset list does allow for blank fields in all columns. I have a number of items in the list with blanks in the FULL NAME column. I came across this post which suggested enabling Formula-level error management. This didn't help my problem. I'm certain that I've been able to 'blank-out' the FULL NAME column before.