Put the summary of the bug you're having here

What I expected to happen was...:
When joining a multiplayer server, sometimes due to server issues it gives you a message to tell you that it failed. 

What actually happened was...:
The message displayed the raw data of the message, displaying font sizes, color values, margins, and other things like that. The debug message was so large that the button to return to the multiplayer page was hidden beneath of the screen. I had to close and reopen MC because I couldn't navigate back.

Steps to Reproduce:
1. I am not sure how to reproduce, but I was joining an Aternos server (free minecraft server host) when this bug popped up. It also might be an Aternos problem, but I wasn't sure so I reported it here. When I attempted to rejoin the second time, it still showed the bugged message, but it worked the third time.

2. Something to note, I used direct connect to join the server, so it might be related.