Combat not ending all enemies are dead

I’m running a Volpentiger team and some of them have Fury Swipes equipped that can proc on hit. Due to the fact that monsters will still attack and cast against dead enemies, I have run into situations where all the enemies are dead, but my Volpentiger engine is still going. There has been times where I’ve had to sit through at least half a minute of the Volpentiger engine chugging away at a screen devoid of enemies.