Charges that fail to drop properly is an issue that is easily monitored on a progressive:
That said, along with the rest of the basics drilled into my sons when we started shooting, was that if ANYTHING doesn't sound or "feel" exactly "right" after the trigger pull...
STOP. If it failed to fire, wait to avoid the possibility of a delayed primer detonation. Inspect the weapon.
Whether it's shooting, reloading, or whatever...chit happens when we get in a hurry and become complacent.