Pardon for repeating my question from the troubleshooting thread, however as it's been a few days I figured making a thread would make it more visible, maybe help me shed some light on this issue.
I'm having a problem animating a character whose limbs don't all have any keyframes on frame 0 (as their animation loop is offset relative to the animation start/finish). This is normally not an problem, with a new model I can grab and drag around the default 0th keyframe without issue. For some reason after a certain point I became unable to perform (some) animation tweaks without the p