blocked specters that do not go after enemies

Hi, I have the Frozen Mandibles specters, this week I've been having problems with them, from time to time one would get stuck and not attack, I solved it by switching to weapon 2 and then going back to weapon 1 or moving the hollow gem.



Since Saturday, he keeps freezing all the time, resulting in death... I don't know why... Could someone please tell me? Thanks.

I think it's a bug, because it's fixed by switching weapons the first or second time...