Hi,
I have come across this (annoying) bug a few times, I am unsure what causes it, but I have noticed it happens:
- Selecting IK
- Selecting multiple IK's (using ctrl+clicking)
- Selecting Bones (maybe, i seem to recall this happening in the past)
It seems to be tough to replicate, but happens frequent enough to become annoying. The only fix seems to be restarting spine
