If you load saved game just right after combat (usual case you lost it and want to return back) following "effects " accure in most of the cases :
1. Ships wan't move - happens most frequently, attmpting to move the ship causes window pop up saing you can't move there.
2. "Next turn" button disapear - rare but happens.
3. Also after every reload the rectangle showing your position on mimi map shows wrong location (old one, where you were before the load) while main window centerlizes on your home planet.
(this one actually happens after every load , not just after combat, most visible on huge maps)
All this things happen in compain, haven't tried sandbox yet.