We recently had to start using Microsoft 365 so that the JE Batch Creator Add In would upload into FENXT. It's been working ok, until last week. Now, I can only use my JE Upload Excel file once. If I try to use it a second time, I get this error message.

I've moved my cursor everwhere I can imagine to no avail. I end up having to create a brand new excel workbook so I can upload my JE. Then I have to go to One Drive and delete all those “one-use” files. Do any of you have any ideas regarding what might be suddenly causing this problem? I googled it, but can't find anything.