There are no bugs in Orbiter 2016!
Bugs no, but limited surface implementation yes.
There's no good solution for walking on the surface.
As far as I know, the existing solutions are a hack of the landed state, doing surface coordinate and heading calculations on their own.
As it is, it's good for descent and landing only, and that's a bit improvement over 2010.
But I understand why developers are waiting for a more complete surface EVA solution