This is funny, I had the exact same situation a month ago. And it was solved by staff presenting the Interchange system:
I documented steps I took with screenshots, should get you all the info to correct the animation names on import.
I really hope that also solves the reimport . I think it matches UAsset name to animation sequence in the FBX when attempting so, I suppose through Interchange as well. Can’t say if that is the same pipeline or something else to configure. Maybe that already works.