actually unplug a working ground (say select or a direction)
rub the tip of the qd with all the “action” qds to make sure its a grounding problem
ie. rub the select qd tip against the HK qd and see if HK comes out.
do this to every bottom, if it all comes out fine its definitely a ground problem.
grounding wire starts off at stick correct?
then goes to
if thats correct there a problem in the chain from the select to the start
check both qds to make sure they’re wired correctly and recrimp the start qd.