Could not get trigger to work - CMC Triggers Glock Flat Trigger Group - Gen 4, .45 ACP G21, G30, G41

I confirmed with CMC that this will work with my G20 Gen 4 and purchased it through OP. When I went to install it, the trigger won’t cycle correctly. It stayed in the fired position and won’t cycle even I rack the slide. I had to manually take my slide down to release it and replace the CMC trigger witg the stock trigger + a connector from a competitor and the gun cycled perfectly. So either my trigger is a dud or it wasn’t designed to work with the G20. Would be trying a Timney one next since they are local to me.