Tunnel not picking up all GCs

I have 4 Ground Control points in the tunnel, 2 on each side and have 130 images. Sometimes the program models one side and sometimes the other, but  two GCs are always on the outside and will not model both sides of the tunnel. It will use only the photos from one side or the other with the associated GC points.

Is there a way of having the tunnel modeled or just on side at a time is possible?

Max features per image is 1 000 000

Preselector features is 80 000

Detector sensetivity is ultra

Settings as discussed in a previous thread.

Thanks