I'm currently looking into an issue in one of my packs (Awakening - Sky of Diamonds) where the mob masher does no damage to mobs or players.

My guess is it is an incompatibility with some other mod, problem is working out which one and why it might be happening. Are there any known incompatibilities that you are aware of? Or any thing you know of that may be the cause?

Any help appreciated, thanks.

Found the cause, for anyone else with the issue, it was a config setting in random tweaks mod that disabled attacking during cooldown.