There are two folders that need to be excluded from OneDrive. You can do this as follows:
For OneDrive, you will need to exclude two folders related to SIMS:
tempSIMSrpt and My SIMS Documents
To do this right click on the OneDrive icon (bottom right) and click "Settings"
Click "Account" tab
Click "Choose folders" next to "OneDrive - Your Orginsation" :
Expand "Documents":
Then Untick "tempSIMSrpt" and "My SIMS Documents":
Click "Ok" (twice)
Close SIMS and then re-open it. This will recreate the folders (which will no longer sync). Then run reports again.
Note: this will need to be done on a per machine basis. You will notice that the OneDrive icon will have a cross through it after you make this change. This is expected behaviour if it complains about these two SIMS folders.