I thought that that was how it worked
This has happened to both my world and a friends world, It is almost as if two accounts were playing on the same world. So it isn't a specific world. It gave me a shock at first
Wait I think that this happened to me just yesterday
Something similar happened to me, When a friend joined a world, all players except for me were kicked, might have been the fact that fifteen clients were on the same domain though
So I like to have my game pinned to the taskbar at the bottom. however when I opened the new version it showed two separate icons at the bottom of my screen, so I unpinned the game and reopened the launcher. when It opened there were no worlds, the worlds were not a big deal to me since I mostly play on a java server, but the day before I reported this bug I checked my dressing room and noticed that I only had that one default cape.
to answer the question, I updated the game through the launcher. I am signed into a microsoft account.
Has this happened to anyone else? please let me know
I can confirm that this still happens in the latest version, the world is cheats off.