Dense reconstruction

[wdstar1]

Hello, first of all congratulations on your excellent work, I used doppelgangers for sparse reconstruction of 35 photos and then used colmap for dense reconstruction, but the number of images that could be densely reconstructed at this time was only 3. I would appreciate it if you could help me with this problem. My threshold is set to 0, and in my understanding it should not filter out any image pairs.