I'm not sure if she's auto-healing or not, but I've noticed Eos is extremely unresponsive after the patch. This caused me problems on turn 8, I was having a lot of difficulty popping cooldowns for the AoE tower exploding, sometimes Fey covenant just wasn't going off at all. I was having to repeatedly to press the keybind and just hope it was going to go off. (I say press, I was aggressively slamming my finnger into the numpad and yelling at it to effin well work!)

Smn in our FC says he's also having problems, especially with enkindle (I think)