sonarr, radarr, jackett and qbittorrent all mounted their Longhorn config PVC at the renderer's default /data/config, but every one of these images runs with `-data=/config`. So the PVC held nothing but lost+found while the app wrote its entire configuration to the container's EPHEMERAL writable layer — destroyed on every pod recreation: restart, reschedule, image bump. Measured in-cluster before fixing, per app, rather than inferred: /data/config dev=2080 [lost+found] <- the Longhorn PVC /config dev=2053 [Sentry asp config.xml logs ...] <- the node's own disk and a marker file written to /config did not appear in /data/config, so they are demonstrably different storage. qbittorrent's /config sat on dev=66309 (/dev/nvme0n1p5), i.e. whichever node it happened to land on. This is the SAME failure catalog/plex.yaml:54 already records having fixed for Plex; plex was the only one of the five that was right. The live /config contents were copied onto each PVC BEFORE this landed, so jackett's API key and qbittorrent's credentials — which other apps reference — survive the move rather than being regenerated. catalog/sonarr.yaml:61 documented this as a latent bug and deliberately left it because it changes live on-disk state. It is being fixed now because all four pods had just been recreated, so their configs were freshly generated and nothing had accumulated to lose. Co-Authored-By: Claude Opus 5 <[email protected]>