My friend and I are unable to join each others worlds, and we have no idea how to resolve the issue. We have tried every troubleshoot we could think of. Both of our NAT types are "open", we signed out of of our Microsoft accounts, we both reinstalled the game, and this is even a problem across multiple devices! Our account settings allow us to play together so knowing the buggy nature of the Bedrock Edition, we assumed it's a bug in the game (which is why I'm making this report!) The only time we can actually play with each other is when we play one of the featured servers, or joining another friends world. We can play other games with each other completely fine, and all of my other friends can join me and my friend in particular without any issues whatsoever. If this is a bug in the game, please fix this as soon as possible.