Hey there having issues with the appearance of materials when Viewing an object from a saved viewport.
The top panel shows my model in the correct location in a saved viewport. As you can see the slate tiles on the roof and bricks on the wall on the left hand side are all distorted.
I imported the same model into the file, set similar viewport settings and it all looked great so not sure why it goes weird when I change it to one of my saved viewports.
The only difference I can think of is the top models location within the file is x338400, y6247715 (this is where the cadastre landed and I just placed the model there) whereas the model on the bottom panel is in the center.