Bug still active, and I’ve found another workaround other than jumping on water: try to face the ladder as straight as you can, while positioning yourself as close to the center of the “opening hole”/mast pole as possible. This might trigger the interaction prompt to climb down. There’s a big risk of falling down while positioning close to the pole, but sometimes it’s easier than jumping to water (which can still break your leg if you hit any objects during the fall)