Metal Super Safety in VZ61 not resetting trigger with upper installed

Klobb

I printed out a SSCZAR VZ61 lower for a parts kit build and ran it with a ASD CPM-10V SS and it ran just fine (a few kinks but functional). Today I just picked up a 4140 SS from Super Safety Solutions to replace it as I want the ASD one for my AR. I function checked it with the upper not installed and it worked fine, but with the upper on the SS mode just works in standard semi auto, no resetting of the trigger unless I release it. Gonna try and talk to the designer of the lower but SSCZAR go see if he has any input but I thought I would ask here to.

undeadchew

Klobb Overcut trigger is the most likely culprit.
Did you buy the trigger or cut it? I always recommend cutting.
Also the trigger should reset near vertical if you have to move the lever all the way to the rear almost to the end of travel it does not work fine and would indicate an overcut/out of spec trigger.