Problem with blender animation (when imorting on Roblox)

Hello, can someone help me on my animation issue ?
The problem is, when I’m importing my blender animation on roblox, there are 2 differents issues :

1 - If I export my fbx file with the Armature + the mesh, the animation editor on roblox do not load the animation (nothing happens)

2 - If I export my fbx file with the Armature only, the animation loads, but the character flips.

Videos of what happen precisely :

The animation I want :

The animation on roblox (issue 1) :

The animtion on roblox (issue 2) :

Here are the fbx export params :
image

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