Windows 10: Minecraft error: You are already playing in this world on another computer.

I have installed Minecraft for Windows 10 on two computers in my house. I can play on either one but not both, which is expected. I logged into Windows using a different Microsoft account on one computer and installed Minecraft again. The Microsoft store displays the other user's profile and it let me download and install it. Minecraft also shows the different profile, in game. We can see each other and even attempt to start a LAN game. However, it still has an error joining stating that you are already playing in this world on another computer. There are no other instances of Minecraft with this world available. I did migrate the world from one computer to the other, when I got the second PC. To make the issue even worse is that the first time I tried to connect a LAN game, it worked great. I cannot get it to work a second time, after dozens of attempts.

:)

 

Minecraft worlds won't show up on the world list.

So when my laptop crashed while I was playing minecraft, the world disappeared. There was another question on here stating the same thing and one of the replys showed how to get it back. I went on the minecraft worlds folder and it was there but it never
showed up on the list on the actual game. I went back on minecraft and ALL my worlds were missing from the list! So my question is, How do I get them back to showing on the game?

 

No sound in Windows while inside a Minecraft world

Whenever I open a world in the Minecraft Regrowth Modpack, Curse, all my sounds stop playing. This does not just refer to Minecraft audio, but also to Chrome (YouTube) and the System sounds.

This only happens when I am using my Bluetooth Headset, when I disconnect the Headset and use the wired speakers instead, it works just fine. Once I leave the world, the sounds instantly start playing again.

The Windows Mixer shows the sound as well, it just does not play.

 

Minecraft Windows 10 Edition Lost Worlds