Adjusted with 1/4. Same issue. Reverse does not appear to be the issue. It is in the forward position (i.e. neutral). I can grab and spin the driveshaft, no problem. I can engage reverse, no problem, drive shaft will not spin. Can come back out of reverse into neutral.

Still cannot get in any gear 1-4, it is like the forks are hung up, jammed, or something. Shifter plates move free and clear, it is not the stops.