The bug / crash that I found is this one
The game crashed whilst initializing game
Error: java.lang.IllegalStateException: failed to create a child event loop
I would not know how to fix this error I get when minecraft is almost started and this does that with every version of minecraft I hope you know more about this because I've already tried things but I can not.
I have the newest version of java.
This a screenshot of the crash/bug:
Related issues
Comments

See MC-34749