This is the problem. I couldn’t replicate it atm, and I cannot share the scene, but I deleted everything except the bones with the problem, and with the hierarchy, and I’m attaching it. They are some bendy bones, with some slight noise modifier, but the problem happens with keyframe animation as well, it is not the modifier.
For some reason the curve of the animated influence has stopped working, the value of the keyframes at the graph editor doesn’t match the value at the properties panel of the strip, which remains fixed all the time. Once it happens there is no way to make it work, I tried deleting the curve and keyframe it again but nothing. It seems that has lost the connection with the data from the graph editor, I don’t know I have no idea. The thing is that everything seems right, but at some point after some tweaking, you discover that the animated influence has stopped working. Fortunately I didn’t save my scene when this happened, so I could try again.
I wasn’t able to replicate it in a simple and controlled way. I will try again, but this is quite time consuming, and at the moment I cannot focus on it.
I have no idea how to report this, should it be enough with this?
Curveinfluencebug.blend (2.65 MB)