I don’t think it’s an on/off or « infection » kind of bug, but rather Bing slowly rolling in some new data, probably without the developers awareness, and which are replacing the higher res textures without matching the lower res. Until someone comes here and shows us proof that he hasn’t got this bug in the concerned areas (which I highly doubt is possible because Xbox players have it too), I think we can consider it unrelated to hardware or settings.
I also do wonder a lot why there isn’t way more people aware of this ! I guess people mostly don’t fly low at the concerned places, or haven’t searched for it on the forums yet… But I think that with the concerned area getting bigger and bigger, more people are going to be concerned.
Maybe, we shall consider listing all the concerned areas to help the devs out? There has to be something in common with all these areas that differentiate them from the non problematic ones …