Merc skill swap??

Hi yall, has this happened to anyone or is it normal? Had an ActII Might Merc for skellies, he died in hell mode, i left game, joined normal game to help friend, ressed him, he now has

Blessed Aim, or something like that, still has all the gear he was wearing, i have no idea! Can anyone Splain, Lucy, Splain! TY

Do the merc actually use

Blessed Aim or is it just the merc screen? When i got to nightmare, my act 2 merc said

Holy Freeze in his screen but was still using

Defiance. I think it is a new lying character screen thing.

Yep I think this is a bug, I hired an A2 NM Might merc, but when I go to Norm or Hell and inspect my Merc, it shows

Blessed Aim.

Thank all of yall so much for helping this Queen Noob!!! I am sure there will be more questions to come!!