I had perfectly working IK rig in 4.23 version. And after converting my project to 4.25 it stopped working. The setup looks fine no errors or something. The IK just doesn’t work. It might be that I use Virtual Bone for the target, but it worked fine in 4.23 why it’s broken now?
Closed project opened again. It started working. Looks like it were some compilation glitches or something…