Hello Santiago,
Can you provide the screenshots (or just values) from the Adjusted tab related to the estimated calibration parameters?
Also, if it is possible, provide the screenshot of the camera locations without alignment (just blue spheres in the model view) - both from side/oblique view and from above.
I could suggest to perform the processing have the following conditions fulfilled:
- unchecked all cameras in the Reference pane,
- removed all markers (you can export them to XML if you wish to re-use them later),
- Align Photos (with resetting current alignment) using the following parameters: Medium (if you have worked on High already) accuracy, only Reference preselection, 40 000 key point limit, 10 000 tie point limit, adaptive fitting - disabled.