Fbx loop animation not imported correctly

[FrancescoBonicelli]

Tested versions

Reproducible in 4.4.stable

System information

Windows 11

Issue description

If I import a fbx 3d model with a loop animation (last key frame equal to the first key frame, and other key frames in the middle), its animation player has an animation with only the first key frame.
I expect to find all the key frames in the animation player timeline.

Steps to reproduce

Import in a Godot project a fbx model with a loop animation (e.g. AnimationTest.zip ).

Double click on the fbx file in the FileSystem dock and check that the animation is present (by clicking on the CubeAction under the AnimationPlayer and playing the selected animation).

Add the model to the scene and check EditableChildren to see the child AnimationPlayer.

Select the AnimationPlayer and hit Play Animation. The model does not animate. If you check the animation track you see that there is only the first keyframe.

Minimal reproduction project (MRP)

Test.zip

I performed the Steps to reproduce, with this project it is possible to check the imported animation.

[fire]

I and @bqqbarbhg will look into it

[fire]

Did you disable animation compression? . Thats my first idea

[FrancescoBonicelli]

I do not know where disable it. I tried models made with both Blender and 3D Studio Max.
From the Godot Import tab I tried disabling mesh compression, trimming and remove immutable tracks with both ufbx and FBX2gLTF importers but I couldn't get the animation imported correctly.