I looked around and didn't see anyone else reporting this, so it might be my... meager hardware?
When I launch any mission and move the camera around, a second kerbin land-mass appears vertically alongside my rocket.
This happens anywhere I've gone- from sitting at the launch pad to orbiting the mun. It appears "static" but it's just the base- and as it moves by (or I move by it?) it will re-set itself.
Eventually, I crash into one of the buildings as they move by destroying my rocket.
The farthest I've made it so far is to mun orbit before hitting these phantom land, and I had to do that by flying from the map view so I wouldn't change the camrea angle. Alas, I forget and touch the camrea and boom- instant land.
Werid, huh?