Key animation Mask

IMAC M1 2021 16Go Tahoe 26.3.1PP 26.0.2 ou PP 26.3 Beta same issue Hi everyone, sorry for my English.I've been trying for a while to animate masks in the effects options like I used to... and I can't seem to do it anymore.I create my keyframes, but when I move the playhead and change the mask path, nothing happens. And when I create a keyframe manually, there's no animation.Tracking works.But manually animating a mask path no longer works, whether the mask is assigned or not.Thanks for your help.