I am running LE12 nightly-20240305-03173a9 on my Tanix TX6.
I've added 2 NFS shares using systemd (movies and series using .mount and .automount units) which mounted successfully.
However, when added these folders as libraries, some content is missing. Under "TV Shows" I have "Halo" amongst others but when I select "Halo" or "The Boys", there are no seasons or episodes. Other series are detected fine.
It seems the series that aren't showing up properly are all MKV. The files show up fine when browsing the mounted folders manually.