I'm quite sure the devs are aware. They look through this forum, and there are a lot of posts about this issue. They don't respond to all of the posts because it would take away from everything else. You have to remember, it's a fairly small dev team.
"And yes, I do read every message on our main forums, even If I can’t always respond." Coming right from Alan.
It is terrible that patches come out once a week considering there are a lot of game breaking bugs, but from what I've been reading, the weekly updates are out of their control. I do think that the game was released from alpha a little too quickly, considering there are so many game breaking bugs, and not even including the multiplayer aspect. I'm happy enough playing solo for now. But even with my char not disappearing, I keep crashing in expeditions, maybe 1 out of every 8 I run. I have items that just magically unequip themselves and take off somewhere into the nether, never to be seen again. The game will get there. We all have to remember that we are playing a game that is in Beta and this is part of the ironing the game out. There's a lot of great concepts in this, that in time will make this a lot of fun to play. I mean, after I finished campaign, I feel like it's left open for expansions.
All we can really do at this point is keep working on helping each other and see what we can remedy on our end. Us finding fixes and work arounds actually will help the devs in finding the issues and fixing them quicker. We just have to stay active here and continue to try and help everyone with our ideas.