I open the launcher and join any sort of game weather it be offline or online. After doing so i play for about 30-50 seconds and the game crashes for an unexpected reason it tells me to report this to mojang so i am doing so right now.

Put the summary of the bug you're having here

*What I expected to happen was for me to go on the game and play online for as long as i wanted maybe record some videos and such.
Describe what you thought should happen here

*What actually happened was i went on for 30 - 60 seconds and it crashed
Describe what happened here

Steps to Reproduce:
1. Log onto mc
2. click on the online server and join it
3. walk and go through a few portals
4. CRASH