Skeletal mesh bug

Hey all,

i reparented my unit class and now all skeletal meshes are rotated by 90 degree y when added to a pawn.

Funny thing: No rotation is set (like in the picture) and the skeletal mesh looks normal in the skeletal mesh editor.

How can i solve this?
I dont want to set a rotation on every mesh because it messes with the game functionality.

Best regards,
M