Two Catalogs migrated from Lr Classic with all images placed in an Album of the same name plus folders with any collections etc.
The third and final Catalog, with 45k+ images, was going well and it appeared all images were pulled across and the message appeared that 'Faces' were now being examined .... I then got an error to say 'Migration was not successful. No one is more unhappy ....'
Checking it appears that all images have come over with their edits but not placed in an Album etc.
Not really wanting to go though the lengthy process again does anyone know whether in these circumstances I have actually missed anything other than some albums (I can easily recreate) not being configured?