Terrain Depression on Cylero considered "underwater"

While descending into one of the many depression on the surface of Cylero, I encountered this rather strange bug: since the terrain level there is actually under the 0m level, when going past that altitude the game decides the craft is now “underwater” and the camera switches to a “top down” view, making it impossible for me to have a usable view of the craft in order to complete my descent to the surface.
I hope this can be fixed easily ;)