ur forgeting maim and mines
Maybe he left them out because he hasn't tested them not because he forgot them?
Anyway, finally got around to thoroughly testing with the latest version and there's definitely a bug with inner grace (the +move and +hp regen skill):
Tested against penitence, claws, maim and TB's frost aura with inner grace + anklet and just inner grace alone and the movement speed recovers normally. So, sorry steel-blade, my tests don't match. I can't recreate instances of slows breaking the movement speed increase.
BUT she will lose her +15% speed bonus from inner grace when the "life's child" skill activates (end of the heal tree - gives +50hp regen when you drop under 30% max hp). Tested on a completely empty map by just getting beat up by towers and with no items. I couldn't test properly but I get the feeling you lose the HP regen from inner grace at the same time, like the buff is completely wiped off. You can only get the speed bonus back afterwards by dieing (or maybe leveling up the inner grace skill again, I'd already maxed in testing so I couldn't try).
So yeah, looks like it might be some kind of conflict between those two self buffs for some reason.
Oddly, inner grace is one of the only self buff skils that doesn't show a buff icon over your health bar whether it's working or not. Just a slightly related oddity.