Felix,
The fix to the splitter plus the patches DID it. However why is the map flooded if I don't put an natural=land all around it. I'm using "=polygons" Have you got any idea on this?
I should think that your little natural=coastline poly on the RHS just below the middle is causing the problem because what you have there is an anti-island (sea surrounded by land) and I don't think the sea generation code knows about anti-islands.
I think if there is no sea polygon at all, the =polygons code should still create a natural=land on top of the blue background (I already noticed this, so bug is not new, but I assumed it to happen somehow due to the wrong overview map) - Should I open another thread for this?
Well, it does generate a land poly when there's no sea but your legend map has sea. I'll think about this and see if I can fix the problem. Mark