Poor mesh quality of building roof

Hi All,

I'm currently producing a model for a capture I did recently. Within the scope is the large sports center that has had its roof poorly reconstructed. I'm confident in the capture technique, as many other buildings within the scope have reconstructed without issue and there is no evident misalignments in the point cloud. Even the support wires on the roof have somewhat reconstructed, which I feel as being very thin and white objects would have been the most likely thing to not have reconstructed here. Yet the wires have and the roof surface has not.

I understand it is a fairly bland and repetitive surface that can cause troubles for photogrammetry, however I feel that this should reconstruct better than it has. I know the GCP near the building is yellow, however I don't believe that is a large enough error to make this occur as some of the roof is reconstructing as expected. The only thing I can think of is adding more control points in the area and running another AT, but I have not had the time for this as I am still reconstructing the rest of the project which is processing as expected for now. I am running Update 20.0 - v10.20.0.4169. Has anyone else had trouble with mesh reconstruction on this version? and any advice on how I should proceed to get a nice reconstruction would be greatly appreciated. 

Cheers