Just finished a pistol build today and while test firing the first 3 shots went fine. The 4th round fired and ejected but the bcg did not go into battery I then ejected the live round and fired again . This round also ejected and did not go into battery but now the bcg is stuck in the chamber with a live round . What the hell do I do now. All parts are new Superior arms lower RRA lower parts kit RRA pistol tube car buffer assembly RRA upper RRA bcg & charging handle Sherluk 11.5" barrel assembly YHM phantom flash hider. Thanks in advance for any help .