Unable to delete propeller

When trying to delete a propeller by dragging it to the delete box, the propeller does not delete, and I cannot interact with it. For some reason after opening a bug report, I can drag it around, but as soon as I try to delete it again, it becomes uninteractable again.

Steps to reproduce:

1. Place a propeller, I used a modified Strider
2. Try to delete it by dragging it to the delete box
3. The propeller just sits there