This has happened to many people on here, and it's because when endermen are hit in the latest snapshot the world tends to freeze. Is this the case in your issue?
I was able to do this several times, the world just stops playing normally and you can't interact with anything. It happens when endermen take any damage at all, not just from a player.
This has happened to many people on here, and it's because when endermen are hit in the latest snapshot the world tends to freeze. Is this the case in your issue?