Lost map marks from my save after coop

**Platform:**
PC

**Steps To Reproduce:** 
First I play my own save like an hour (found farms, beacons etc.) Then I want to play with a friend -> join him -> next time I play my save again; I have lost marks from a map. There is only few Safehouses, nothing else..

**Images / Videos:** 
Example: Imagine that this is from coop game
https://imgur.com/a/NkTd8lo

And this is my save:
https://imgur.com/a/9DCbX1c

**Host or Client:**
First pic is example for joined session
Second pic is my own save.
**Players in your game:** 

**Specifications:**

There is no point to continue your gameplay… I’ll put this game to break right now and going to wait a fix!