The default "D" key settings are mapped to two different things.
D = turning right with the rover
D = debug
The default "D" key settings are mapped to two different things.
D = turning right with the rover
D = debug
Open options/settings/key setup
Delete the turn right function that is mapped to use "D" key.
Now assign "D" to the same function again.
Now you will get an error saying the "D" key is already mapped to the debut function.