Need help with not cycling

[DIESEL758]

Ok so I got the bolt issue fixed all is well. The problem I am having now is the bolt will not cycle back and lock. I adjusted the gas block and nothing happens. I did manage to get it to work one time the bolt locked back so I filled the mag and nothing it will eject the round sometimes and others it just hangs and is sticking out sideways.

24" bull barrel BHW
AA LOWER
VLTOR UPPER
M16 carrier
Grendel bolt
JP adjustable gas block