Microsoft Teams Migration Missing Data: Troubleshooting Guide - Fix Windows Backup Error 0x81000019 on System Restore-Troubleshooting Teams Rate Limit Errors in Graph API
Before changing system settings, save your work and note the exact error text so you can compare results after each step.
Extra verification checklist
- Restart the affected app after changing permissions or configuration files.
- Test the same workflow in a clean browser profile or a temporary user account.
- Compare the result on another network if the error may be connection related.