Hello Raquisite,
So from what you described you imported a .fbx from Maya for the use as a skeletal mesh with animations. As soon as you add the animation blueprint the character flips to their back.
All skeletal meshes and animations coming from Maya will be rotated 90 degrees off, (facing y-forward after import) Even Epic’s examples have this offset. All you have to do is rotate the skeletal mesh, in the Blueprint, to face x Forward.
Can you reimport the file from the fbx? If so, you can use the controls in FBX Import Options under Transform to rotate the incoming skeletal mesh. If the problem is while the mesh is standing on the x-y plane, you are normally talking about ‘Yaw’.
It sounds as if the skeletal mesh you have imported does not align with the animations you imported.
If you are still having a problem after looking into these troubleshoots then please post again with screenshots of your skeletal mesh in animation editor, a screenshot of what is happening when it breaks, and your animations.
I will then continue to investigate this issue.
Thank you,