Hi CraigCB,
We did a test based on your description, but we did not get an error.
Here are my steps:
- Connect a workbook and share the file to others.
- Click Refresh All and edit the workbook on another computer.
Since we can not reproduce the issue at our end so we will give you some general suggestions:
- Delete cache in Upload Center
Click on Windows key> Enter Office Upload Center> Click on it to Open> Settings> Delete cached file> Ok.
- Save a copy and try editing on the copy to check whether you will also get an error.
If still issue persists, may I know does the issue occurs only with specific file?
Regards,
Jason