Trouble aligning chunks with cameras

[William Ringle]

Because of the number of cameras (c. 1000) and the limited capacity of my computer, I am building a model of a stone building in chunks. I have successfully aligned chunks of several portions of the structure using camera positions, however I am having difficulty aligning one room interior. To connect the room with the exterior, I included 14 photos from the exterior around the doorway to the room in the room chunk. Alignment etc. went fine, all aligned properly. However, when I then attempt to align this chunk using cameras, nothing happens.

Any ideas where I might be going wrong? Why might the align fail technically?

[Alexey Pasumansky]

Hello William,

Are the cameras with the same labels correctly aligned in both chunks?

[William Ringle]

My bad. Somewhere in the process of merging chunks, the alignment cameras were duplicated in the larger chunk, so when I went to align the smaller chunk, apparently there was ambiguity as to which camera to use (even though the image names were different, e.g. IMG_3675 and IMG_3675.jpg). When I removed the duplicates, it worked fine. Sorry for the bother.