If you check roman's update, there is a known bug in the engine. The snapshot was successfully deleted, but the engine database is out of sync.

On Thu, Jun 3, 2021, 12:46 PM Strahil Nikolov <hunter86_bg@yahoo.com> wrote:
Hey Nir,

you said that the data in the snapshot changed ?
I always thought that snapshots are read-only.

How is that possible?

Best Regards,
Strahil Nikolov