Can't see versions but Nextcloud is seeing snapshots

Hi all,

I’ve got an issue on Nextcloud 12 and the Snapshot Application (v0.1.1).

I’m using Debian 9 with a BTRFS file system.

I can see my snapshots in Administration / Snapshots, but I can’t see any versions of documents edited under Details / Versions.

Is there something I’m missing ?

Thanks !