same for me window 7, updated java
all bugs have recently been fixed with the recent realms update
i have figured out the bug, what happens is the server freezes but the client dose not, as a result when reloging u will not disconnect on the server, but duplicate yourself (i actually killed my duplicate, so it is a major bug that involves item duplication too.) not a snapshot it is minecraft realms
Now noting the last commenter this is not an ip multiplayer this is minecraft realms where you have to imput the persons user name for them to be added to the realm and you can not have a space in your user name in minecraft.
thank goodness, you cant delete my bug report account, i was hacked