Are you inside the police station or somewhere else?
It happens no matter where I am. I shoot at a canister and it happens. Happened in the alley at the hollowdexxx. also in the club district shooting at the clunkers. The gun dose not fire in the police station as you said in this version. I had the same issue in vo.39 also. Before that it was fine. If you need any information on my set up let me know.