I went through and rebuilt my databases from scratch for Plex, sonarr, and radarr the other day and I am now experiencing some weird behavior with the sonarr database. It is corrupting with similar messages in the logs, but the container can be restarted, unlike before rc3. The app is generally responsive, but I have noticed that it won't reliably interact with the download client. After a while, the sqlite errors return to the logs. I'm not really sure what to do at this point but I can provide my diagnostics again.
serenity-diagnostics-20190924-0250.zip