Strange Anim Montages interruption

I’m trying to implement souls-like combat system and I’m using anim montages to play attack animations. I faced some strange behavior. When I just press attack button my character perform attack combo correct and it also handles correctly the hit (deals damage, force enemy to play hit animation and etc). But when I’m pressing “W” and trying to hit it seems like character bumps his shoulder/weapon against the enemy body and it’s immediately interrupt anim montage on player character. I’ve already gone through many possible solutions to the problem, tried various collision setups, disable some physics options whose meanings I don’t understand and as a result, nothing helped me. Have u any suggestions how to fix this? I used default ue5 char & movement component as base class for all my chars.