I envy all those who have had flawless upgrades. I have been working on mine for two days straight (there goes my weekend).
Now I finally thought it was working ok... I lost all auto gen trees! 100% gone with everhing maxed. If I look around I see literally 100's of white squares pop up then disappear. Or if I am on the ground they turn into clear squares yoy can see but then they block out buildings.
Now I have a vast baron wasteland of forests. oh well (a big sigh), guess it's going to be a late nighter...