Hello. Thank you for your attempt at resolving this issue. If my armature was to have several animations, I would definitely have a blank default armature file ready to animate for a new scene. Since this is the only animation for this model in particular, I just started animating. Also, I am exporting from Blender into UE5, not the other way around.
I also tried to export and reimport my animation within Blender, one, to check if it is exporting at all, and two, to see if I cant export the reimported animation (which also did not work). I also tried baking the animation to make it all ONE animation on the NLA and deleted the other tracks, but this also failed.
Thank you again for your attempt. if you have any other potential solutions in mind, please add it here. Thank you!