itch.io

Same

I know its not a perfect fix but you can use the Park Vehicle mod to disable it from being in your tab cycle.

If you start a new game it works.  For your saved game, edit the vehicles.xml file in your saved game folder, search for efg, about 25 lines down from there look for line <enterable activeCameraIndex="1" isTabbable="true" and change the true to false.  Now search for M50 and do the same.