Thanks for this!
Going for a no-casualty run, I tend to rely on the Inquisitors-Chargers-Resurrect combo to take out Overpowering enemies.
Not being able to see where the mana and rage balls go is a real bummer, to say the least.
I did have some success by bringing down all graphics settings from high to normal, as well as disabling anti-aliasing. If ever the problem comes up again, I will try the fix you provided.