Me and my friend started to play together on his world 3 weeks ago, but something weird is happening. Every time I join play for a bit (at least few minutes) and then leave everything seems fine. However when I join again I am teleported back to the place I was roughly 2 days ago (Wasn't able to determine specific time but seems to be between one day and two days). My inventory, equipment is the same as when I left, however I lose all progress (Books, recipes, lvl, perks, quests) that I did earn during this 1-2 day period that game go back with.
This already happened few times and I am not really sure what could cause that as it wasn't like this before day 20-22?. (Not really sure about specific time).
With the file log I am not sure if there will be something on my log or his log.
Edit: After checking game versions I think it started after A20.4 b42 went Stable.