Dunno where I saw/read about invul frames, it was pretty soon after ER launched, so I’m not taking it as the truth, either. I still feel that something about the dodge itself is different, but with the amount of delays and long wind-ups to enemy attacks it’s hard to tell. Sometimes I (think I) dodge right as the swing starts, and I’m at the other end of the arena by the time it lands. Other times, I (think I) dodge as the swing starts, and end up stunned and eating a second hit as well… Which is ok, because only the Mimic Tear managed to kill me so far (got overconfident first time at it, it ended up doing more damage per hit to me than I did to it).

Edit: either way, I’m 99% certain there’s no input lag (at least under optimal conditions, it’s not default to the game itself), I tested it extensively with other actions, and none feel as finicky as dodge timings. Heck, the akimbo Bloodhound’s Fang slam attack staggers armored war horses, I don’t really dodge anymore:))