i know it happen to me too but just keep trying to reaload it thats what i did

I finally was able to spawn it in my singleplayer world. But when I go in third person, it's not there but is visible in first person. That's a glitch I have noticed but what I mainly want to know is how to get it in multiplayer. Does it need to be in a specific server with that workshop item? If so, any servers with the ZoidBerg cosmetic?