Try deleting your rolling cache, taking off from the closest airport and going straight to the castle. Let’s see if it’s back. I have a working theory that we’re being strangled on bandwidth due to lack of server capacity. After I had been flying a while, I went over Aarhus Cathedral, which looked much like your picture of Edinburgh. It was flat as a pancake. I deleted the previous way points so that I went to Aarhus first, went straight to the cathedral, and there it was. Looked pretty good, too. I went down to the southern edge of the city, turned around and came back, and it had been nuked again. Photogrammetry has nothing to do with this.