Hi VentureUAV,
yes, if the model is bigger than 40M tris, it is showed as point cloud. You can see the part of mesh if you use Clipping Box or you need to simplify created model under 40M tris.
I can see, that both datasets are aligned in one component. Also it seems, that the images were taken form the same height:
This is what I thought regarding to 3D view of aligned images.
It seems, that you simplified your model from 161M tris to 41M tris. It is recommend to do this in 50% incremental steps (160 -> 80 -> 40).
This the the result of using the images just form above/flight. To improve this model it is a good option to use also images as from Google Earth/terrestrial images, where these walls will be captured also as it is described in previously attached video. If you want to have modeled a whole object, it is important to follow the shape of the object: