I changed my skin ,after i changed it i logged onto a multiplayer server and it crashed. After i logged onto a singleplayer server and it worked fine. But whats the point of a skin that nobody can see?

Put the summary of the bug you're having here
A crash
What I expected to happen was...:
Describe what you thought should happen here
I thought i was going to be logged onto Mineplex
What actually happened was...:
Describe what happened here
Minecraft crashed
Steps to Reproduce:
1. Put a step by step guide on how to trigger the bug here
2. ... I click onto multiplayer
3. ...clicked onto mineplex, then it crashed