The Pokémon Sleep bugs affecting the Snapshot Surprise feature has now been fixed after not working properly

The Pokémon Sleep bugs that were causing the Snapshot Surprise feature to malfunction have now been fixed, restoring the feature after it was not working properly. Players should once again be able to use Snapshot Surprise as intended and receive their usual rewards without errors or missed interactions. The fix smooths out one of the more noticeable recent issues in the app, so if you ran into problems before, it’s a good time to jump back in and check that everything is running normally.

Source: Official Pokémon Sleep news