Exactly the same with non-moded game (FX45, SK, AK etc.). Problem happens each time I swap a weapon in crouch position. After that, impossible to do any left-clic action : all is stuck (drinking, healing, reloading clips etc, or enter in a car)... but this bug already appened for me in other situations (reorganize inventory and relaoding clips without crouching before) SINCE last patch (never had it before).