Confirmed for PC as well.

Most egregious is trying to get a thrall to retreat from combat. They just won’t. I have lost many, many thralls because, at half health, I decided it was time to go, and they refused to follow, move, return, etc.

Several times, running away while spamming the Return command had zero effect.

But, by far, my favorite is watching a thrall put away their weapon and resort to punching while in a group combat. Until you specifically tell them to attack their normal response is to punch the group of 3-5 NPCs rather than pull out their weapon and do something.