ToME: the Tales of Maj'Eyal

Hi I'm playing Thalore AB.

and when I entered dreadfell, my automatically cast earthern missile which comes from arcane combat start to hit myself..

wonder why it begins on dreadfell. There haven't been any other problem before there.

or, Is there any chance to change my status to donators makes problem? I bought on steam this game and re-install before entering dreadfell.

hope this problem will be fixed soon! I don't want to be killed my own spell

PS. I'm using only pointplanner addon except standards.

and I figured out it only happens when I killed foes by my melee attack damage so there is no target to hit by auto cast earthern missile.

except this situation it works fine.