IMO... You need to stop when a problem happens, look at the problem, figure it out before continuing. After all, your stage is already a loss. If it is a magazine problem, do not continue using that magazine during the match. Check the feed lips, spring, follower, et al before using it again. Check ammo OAL. Then look at the firearm for issues - burrs, broken or chipped pieces, whatever... polish the feed ramp, any surface that comes in contact with moving elements and use lube... a dry gun will not run...