I’m only 16 hours in and haven’t lost any saves (yet). But I got to a point where the game wouldn’t start and the Larian logo in the beginning moved extremely slow. We talking maybe one frame every 20 seconds.
I had to do a restart of the Xbox and the the game would start but it told me to make a choice between a local save or Microsoft cloud save.
The local save was from right when I started the game just now and the cloud save was from when I exited the game last time.
It worked but I had to restart the console every time I wanted to play. Otherwise the game would start. So I decided to wait for a patch.
Also this bug effects some of my other games and the console itself. MSFS 2020 froze at the title screen and when I did a restart the console froze at the Xbox logo.
Had to do a hart reset and pull the plug to make it working again. Very scary if the console is affected.