Automatic Backups reset my realm's world

As it can be appreciated in the attached pictures, some backups mark they are 0.00 MB, with the exception of two of them, those two were made when I downloaded the map so I'll consider they were "manual"

When I download one of the backups that mark they are 0.00 MB and play on it, it seems it is the map with the exact same seed my survival uses, but it's a new one