There is the:
btrfs subvolume delete <subvolume>
command for deleting snapshots, but is there any solution if you need to delete a single directory from 60 snapshots?
Not possible with rm -rf it will say Read-only file system.
Thanks
Maybe your snapshot is read only. Try to enable read/write using the following command:
btrfs property set -ts /path/to/snapshot ro false
Also, double check than when mounting the snapshot it is not mounted in read-only mode (ro
mount option)