i participate to a thread about message in a bottle by doing an in game test. I invite you to read it in this post :
For resume it , i made a count of message in a bottle by disabling the fog of war , 19 bottles was there. When i did a save / reload game , 2 bottles or map marker disapear.
Steps to Reproduce
simply count the message in bottle with no fog of war , then save and relaod and make an another count of bottle on the map.
simply count the message in bottle with no fog of war , then save and relaod and make an another count of bottle on the map.