Fbx not looping properly / hiccup

Hello everyone,

Im working with some .fbx exported from blender in TD v 2022.29850.

In blender and in some online 3D object reader (Creators 3D) my animation loops perfectly without any hiccups. However when I open it in TD I have some hiccups at the transition between the end and beginning of the animation.

I tried messing with the sample rate following this old post : modify FBX to loop forever! , but I cant get any good results and I don’t understand the problem.

The .fbx is linked along with a quick video of the hiccup

Thanks !
Video+fbx.zip (2.2 MB)

I managed to get rod of the hiccup by changing the sample rate to custom and not FPS !