Position animator appears to be bugged in 24.4.1

Anyone else having trouble with the layer animators in v24.4.1? The position animator isn't working as it has before. It seems to be animating in an extremely weird way, that's sort of difficult to describe so I'm including a GIF.  The characters seem to be popping back to their original position no matter what. And when on the "Based on: Lines" setting is chosen instead of "characters", the animator doesn't work at all. Bad news for folks who used the animator + masks to animate text on 😞