A family of Microsoft spreadsheet software with tools for analyzing, charting, and communicating data
Dear Kamarc,
It seems that there are some cache and credentials issues in your Office apps on your iPad.
I suggest you back up all data which isn't synced and then click on Settings>find the Office apps, reset each app on your iPad and restart the iPad and then do a test again to see the result.
Welcome to share any updates when you have time if you need further help on this issue.
Thanks for your effort and time!
Sincerely,
Cliff | Microsoft Community Moderator