When zooming in at altitude, parts of the coastal water was replaced with sky texture. Shows both internal as well as internal (bombsight).
See screenshots.
Additional problem visible on picture "texture": There is a port located on that screenshot, but unlike other bases it was actually not showing up. As you can see, theres only that prominent coastline to, but no installations visible. They only showed up when being right over the base, thus too late for bombing. Did not have this problem with the factories which I was later heading to.
Map: SFMA, southern port. Detail range at default.