Hi there - been following for a while but pre-ordered this week and now stuck into V8.5. Awesome game
Right then, having saved and then loaded a ground combat mission, I finished the mission and noticed two things (as well as the mission state restarting and not being saved, already reported elsewhere):
1. The top line of buttons in the geoscape no longer work and so to access base layout, research, etc I needed to click on the base itself and then use the tabs within the base view to navigate around. Annoying but fairly minor.
2. Completed a further ground mission by killing all the aliens but when trying to finish a third I found that the ability to complete the mission by holding the control room for five turns no longer works. Combined with the UFO being against the edge of the map, and I expect at least one alien hiding in the back section, the mission couldn't be finished.