What is causing this issue? 

If you are experiencing an issue in which Device IDs aren't saving to the Shift4Interface configuration, this means that either: 

1. The UTG's Install directory is not matching the UTG's assigned Trace Directory
   • Example: UTG is installed on Drive D:, but the trace assignment is on C
2. Your User or the UTG doesn't have Read\Write privileges to the assigned directory

How do I resolve this issue? 

1. Validate the assigned UTG install and trace directories
2. Stop the UTG Service or Standalone
3. Open the UTG Tune-up
4. Navigate to the Advanced Tab and select Trace Configuration
5. In the file path details ensure that the assigned directory matches the directory the UTG was installed on
6. Once done hit OK, then hit Save at the top of the tune-up to save and close

Should the above not work try another user account, or update the UTG Manually with a user of higher privileges.