Hey there, @SaraCecil.
Thanks for reaching out to the Community for support.
To clarify, have you recently restored a backup file that was dated before your user changes? Or have you recently updated your QuickBooks file? If not, it sounds like you may have some data integrity issues with your file that's causing your users to default back to prior permissions. I've included some steps below to scan your file and repair any data integrity issues that are in it below.
To Rebuild:
- From the File menu, choose Utilities, then Rebuild Data.
- Hit OK if you receive a prompt to backup your company file.
- Once the backup has completed, the Rebuild utility will automatically start.
- Select OK when you get the message "Rebuild has completed".
To Verify:
- Under the QuickBooks File menu, select Utilities, then choose Verify Data.
- Tap on OK when you see the message "QuickBooks detected no problem with your data".
Now, you can check your user's permissions. For further information about this process, take a look into Resolving Potential Data Issues.
Please let me know how it goes. If you have additional questions or concerns, don't hesitate to ask. I'll be here every step of the way. Take care!