1. That sounds weird, is that each time or just one off? Because it sounds like windows lost focus of the game window?
2. There are some issues with saving/loading and this happens when entering dungeons. Will try to fix it, sorry for you lost buildings :(
3. Yeah currently i think only the tent actually works. The idea is for beds to do it as well but will improve this in the future.
4. Building system will be overhauled, some pieces work worse than others.
Thank you for all the feedback! :)