3d animation timing problem

Hi, I’m unsing cocos2dx 3.10.
I have a simple animation made with 3dsmax.
Some components of the animation go with different timing than the animation produced by max…
I don’t know how to explain better so I have uploaded the 2 screen recordings.
I can share max file, fbx…ccp files to reproduce the error
If you really want to inspect the bug I can try to make a easier example with less bones and easier mesh
anim.zip (602.0 KB)
please help