Please see the bug report below:
1 Username: michamvk
2 Platform (PS4, Steam) : Steam (Linux)
3 Date when the issue was encountered: Not a specific date or patch moment the issue encountered
4 Problem description: When adding a marker buoy to the map, the marker is only placed on map but not in the game world, I tried the markers on another device but results are the same.
--> Interesting note: In Windows the marker buoys are displayed, but there the game is not playable for me due to random crashes. So it looks the game is Linux Specific.
5 In-game equipment settings (if you experience any technical issues with rods, lures etc) : not applicable
Hopefully you can check this out since it is easily to reproduce.
Best regards from a fishing planet fan.