How to reimport mesh without breaking all blueprints and references?

are you talking about this? I just tried it at your suggestion and it didn’t change anything, he still moves sideways in all his animations. And yes I reimported the mesh after changing that.

Edit: I just found the rotation part of that thing and tried it, which is what I think you meant, and it did rotate the mesh, but he still is sideways in all his animations, I’m not sure if he rotated in the blueprint version, I’ll have to test and see.

Second edit: yeah unless there’s something obvious I’m missing, doing this has zero effect on how he’s rotated inside of his blueprint.