Saber Sword bugged in realm

So when I equipped the Saber Sword tool skin on my Legendary Sword from Boulder and then went back to my realm, the skin didn't show, only the Legendary Sword. Whenever I went back to spawn, the Saber Sword skin reappeared. It appears to be some visual bug. It doesn't appear to affect other tool skins (I only tested it on the Maple Sword tool skin).