Hopefully this isn't unique to me (ie, somebody knows a fix), but I didn't find anything when I searched the forum.
When I approach Sandy Shores Airfield, the Ramius sub appears just north of the main runway. It's not a solid object.
The situation used to crash my game. But that stopped after the current Los Santos Mercenaries DLC, so that's good. I've done a number of searches of my installed mods for Sub, Submersible, Submarine and Ramius and removed anything that seemed related, but no change.
Does anyone have any guesses on how to fix it or what to search for in the logs? I'm at a loss.