You should read the e-mail you got from @MatHayward . Adobe is simplifying their task. Adobe has selected the pictures but they will be switched to free soon, but for some reason they can't do it immediatly. So instead of paying you when the asset gets switched, Adobe decided to do advance payement and switching to free at a their pace.
You can see what images got selected and switched to free when looking inti your contributor portfolio and selecting the corresponding
I move this to the contributor forum.
ABAMBO | Hard- and Software Engineer | Photographer