I contribute at a few stock platforms and Alamy is the only one that does QC on a submission/batch level instead on an individual level.
So I upload 15 photos, my submission failed, and I have no idea at all why and no idea which photo was the reason for it.
How should I learn about that so that I can correct the single photo or leave it out. Now all other photos got rejected as well.
From my point of view a very strange approach to do the quality control.