Thanks. I'm blind.

If anyone knows what the standard bug submission procedure is please let me know. I could not find a guide. Do you need any logs? Or more system info?

Thanks a lot.

The issue does not appear immediately. It seems to be triggered by driving. It does not appear at every zoom level.
Moving away occasionally fixes this state. Once triggered, quitting the application and reloading the save does not always clear this state.

After restarting the machine and ...