This is now mostly fixed by updating nvidia driver from 390 to 418.39 Only when i give a unit an order to go to a position the sprite for the click is not totally transparant so i see that circle inside a black square of the sprite.
When i move around the map everything flikkers into it's old position including the fog of war
under the carry-all i see a black square where i expect transparancy
I also see units flikkering in spots where they used to be before i moved them. Same for the mouse pointer.
Making a screenshot also sometimes helps to stop flikkering
When i alt tab back to desktop and back to game sometimes this fixes the problem
Graphics issue
GUI problem