Something to be aware of. Not sure but this may be a recent bug with Version 1.5.5 build 9097 (64 bit).
I had my photos masked and aligned. I saved the project. When I imported my GCPs, all the photos disappeared.
I am using the Windows 'File History' option, so was able to get a good previous frame.zip file restored. I could then see what happened.
The project was saved on a network PC (UNC path). My photo folder is on my local PC. Metashape had saved the path as if that folder was local.
Search and replaced the photo paths with the UNC folder name. Project now opens correctly.
Topic: Photo path not saved correctly (Read 1723 times)
