Hello! Thank you for your contributions to OpenStreetMap. Your efforts are greatly appreciated. However, with this recent edit, it seems that the natural=coastline tag has been removed from some parts, and as a result this caused issues with coastlines tag not being connected as a whole. It would probably be best not to delete the natural=coastline tag. Instead, you might want to add the natural=wetland tag as a separate way or as a multipolygon. This way, both natural features can coexist without any rendering and broken ways problems. Thanks again for your work, and happy mapping!