pgbackrest creating new directories (messing up cron jobs).

Hello,

My pgbackrest creates the files in
/var/lib/pgbackrest/archive/main/10/0000000100000000

Each file looks something like:
000000010000000100000022-033bbe600913c068e89c3d063afb1f0527bf513d.gz.

However, when the last two digits of the section before the hyphen become
FF, pgbackrest creates a new directory:
/var/lib/pgbackrest/archive/main/10/0000000100000001.

This is annoying as I have a cron job set up to focus on files in the
0000000100000000 directory.

Is there a way to force bgbackrest to only use one directory (e.g.
0000000100000000)?

Thanks.