When clicking an arrow in the ArrowDiscWidget, the globe starts spinning. If you then drag the cursor outside the designated region (and release the mouse button), the globe continues rotating. Also, clicking an arrow and slightly shifting the cursor makes the arrow become blue (instead of keeping its "pressed" gray color).
Thank you for the bug report. As this report hasn't seen any changes in 5 years or more, we ask if you can please confirm that the issue still persists. If this bug is no longer persisting or relevant please change the status to resolved.