Permissions error or settings for shows?

[Paradoxum]

my compose file:

version: '3' services: previews: image: stevezzau/plex_generate_vid_previews:latest environment: - PLEX_URL=http://192.168.2.90:32400 - PLEX_TOKEN=zMQQrtertertasNx - PLEX_BIF_FRAME_INTERVAL=3 - THUMBNAIL_QUALITY=2 - PLEX_LOCAL_MEDIA_PATH=/mnt/thumbs/ - TMP_FOLDER=/tmp/thumbs/ - PLEX_TIMEOUT=120 - GPU_THREADS=8 - CPU_THREADS=6 volumes: - /mnt/user/Plex/Plex Media Server/Media/localhost:/mnt/thumbs - /mnt/user/data/media/anime/movies:/mnt/anime/movies - /mnt/user/data/media/tv:/mmt/tv - /mnt/user/data/media/movies:/mnt/movies - /mnt/user/data/media/anime/series:/mnt/anime/series deploy: resources: reservations: devices: - capabilities: [gpu] runtime: nvidia

it actually ran and did anime movies and regular movies fine. but when it got to the shows, I get this:

my /data/media/ dir is r/w for all, and it was able to do the movies fine, what exactly does the error 'a red x'? mean. doubt it's permissions when it can do movies fine (just added a new one and it generated that fine.)

This is a fresh plex install/db so I could generate thumbs for it using my tesla p4. (anyone know how many threads max for that I should put to max it out??) The plex drive is at about 90gb now from generating for the movies folders.

Thanks in advance.