When trying to ''Quit Game", the screen freezes, and it is necessary to use Task Manager and kill the session. Upon doing so, the Java engine throws a non-specific error, and the return to the launcher shows that an error occured. This happens using either OpenJava RT, or the standard Java RT, 64-bit. This is on a vanilla version of 1.17, on a new world or a pre 1.17 world.