Sonarr version (exact version): 4.0.0.286
Mono version (if Sonarr is not running on Windows):
OS: Docker/Debian
Debug logs: Log File
Description of issue: * ReleaseRestrictionsSpecification: Value cannot be null. (Parameter ‘source’) error when trying to send a release to download client. This error just started after I updated to V4 by updating the docker container. Sonarr can find the release, but I get a red exclamation mark with the error. I can download/send the releases manually to the download client. But it won’t fetch the files automatically. I did not change any settings when I made the upgrade.
Any assistance would be appreciated.