Sonarr doesn't remove original file after importing

Sonarr version (exact version): 3.0.8.1507
Mono version (if Sonarr is not running on Windows): 6.12.0.122
OS: OSX Monterey
Debug logs:

2022-05-06 08:19:24.0|Debug|Parser|Parsing string 'Greys.Anatomy.S18E16.1080p.WEB.h264-GOSSIP[rarbg]'
2022-05-06 08:19:24.0|Debug|Parser|Episode Parsed. Greys Anatomy - S18E16 
2022-05-06 08:19:24.0|Debug|Parser|Language parsed: English
2022-05-06 08:19:24.0|Debug|QualityParser|Trying to parse quality for Greys.Anatomy.S18E16.1080p.WEB.h264-GOSSIP[rarbg]
2022-05-06 08:19:24.0|Debug|Parser|Quality parsed: WEBDL-1080p v1
2022-05-06 08:19:24.0|Debug|Parser|Release Group parsed: GOSSIP
2022-05-06 08:19:24.0|Debug|TrackedDownloadService|Tracking 'Transmission M1:Greys.Anatomy.S18E16.1080p.WEB.h264-GOSSIP[rarbg]': ClientState=Completed (readonly) SonarrStage=Downloading Episode='Greys Anatomy - S18E16 WEBDL-1080p v1' OutputPath=/Users/kimheymans/Downloads/Greys.Anatomy.S18E16.1080p.WEB.h264-GOSSIP[rarbg].
2022-05-06 08:19:24.0|Debug|Parser|Parsing string 'Greys.Anatomy.S18E16.1080p.WEB.h264-GOSSIP[rarbg]'
2022-05-06 08:19:24.0|Debug|Parser|Episode Parsed. Greys Anatomy - S18E16 
2022-05-06 08:19:24.0|Debug|Parser|Language parsed: English
2022-05-06 08:19:24.0|Debug|QualityParser|Trying to parse quality for Greys.Anatomy.S18E16.1080p.WEB.h264-GOSSIP[rarbg]
2022-05-06 08:19:24.0|Debug|Parser|Quality parsed: WEBDL-1080p v1
2022-05-06 08:19:24.0|Debug|Parser|Release Group parsed: GOSSIP
2022-05-06 08:19:24.1|Debug|DownloadedEpisodesImportService|Processing path: /Users/kimheymans/Downloads/Greys.Anatomy.S18E16.1080p.WEB.h264-GOSSIP[rarbg]
2022-05-06 08:19:24.1|Debug|Parser|Parsing string 'Greys.Anatomy.S18E16.1080p.WEB.h264-GOSSIP[rarbg]'
2022-05-06 08:19:24.1|Debug|Parser|Episode Parsed. Greys Anatomy - S18E16 
2022-05-06 08:19:24.1|Debug|Parser|Language parsed: English
2022-05-06 08:19:24.1|Debug|QualityParser|Trying to parse quality for Greys.Anatomy.S18E16.1080p.WEB.h264-GOSSIP[rarbg]
2022-05-06 08:19:24.1|Debug|Parser|Quality parsed: WEBDL-1080p v1
2022-05-06 08:19:24.1|Debug|Parser|Release Group parsed: GOSSIP
2022-05-06 08:19:24.1|Debug|DiskScanService|Scanning '/Users/kimheymans/Downloads/Greys.Anatomy.S18E16.1080p.WEB.h264-GOSSIP[rarbg]' for video files
2022-05-06 08:19:24.1|Debug|DiskScanService|1 video files were found in /Users/kimheymans/Downloads/Greys.Anatomy.S18E16.1080p.WEB.h264-GOSSIP[rarbg]
2022-05-06 08:19:24.1|Debug|ImportDecisionMaker|Analyzing 1/1 files.
2022-05-06 08:19:24.1|Debug|Parser|Parsing string 'Greys.Anatomy.S18E16.1080p.WEB.h264-GOSSIP[rarbg]'
2022-05-06 08:19:24.1|Debug|Parser|Episode Parsed. Greys Anatomy - S18E16 
2022-05-06 08:19:24.1|Debug|Parser|Language parsed: English
2022-05-06 08:19:24.1|Debug|QualityParser|Trying to parse quality for Greys.Anatomy.S18E16.1080p.WEB.h264-GOSSIP[rarbg]
2022-05-06 08:19:24.1|Debug|Parser|Quality parsed: WEBDL-1080p v1
2022-05-06 08:19:24.1|Debug|Parser|Release Group parsed: GOSSIP
2022-05-06 08:19:24.1|Debug|VideoFileInfoReader|Getting media info from /Users/kimheymans/Downloads/Greys.Anatomy.S18E16.1080p.WEB.h264-GOSSIP[rarbg]/Greys.Anatomy.S18E16.1080p.WEB.h264-GOSSIP.mkv
2022-05-06 08:19:24.1|Debug|DetectSample|Runtime is over 90 seconds
2022-05-06 08:19:24.1|Debug|Parser|Parsing string 'Greys.Anatomy.S18E16.1080p.WEB.h264-GOSSIP.mkv'
2022-05-06 08:19:24.1|Debug|Parser|Episode Parsed. Greys Anatomy - S18E16 
2022-05-06 08:19:24.1|Debug|Parser|Language parsed: English
2022-05-06 08:19:24.1|Debug|QualityParser|Trying to parse quality for Greys.Anatomy.S18E16.1080p.WEB.h264-GOSSIP.mkv
2022-05-06 08:19:24.1|Debug|Parser|Quality parsed: WEBDL-1080p v1
2022-05-06 08:19:24.1|Debug|Parser|Release Group parsed: GOSSIP
2022-05-06 08:19:24.1|Debug|VideoFileInfoReader|Getting media info from /Users/kimheymans/Downloads/Greys.Anatomy.S18E16.1080p.WEB.h264-GOSSIP[rarbg]/Greys.Anatomy.S18E16.1080p.WEB.h264-GOSSIP.mkv
2022-05-06 08:19:24.1|Debug|Parser|Parsing string 'Greys.Anatomy.S18E16.1080p.WEB.h264-GOSSIP'
2022-05-06 08:19:24.1|Debug|Parser|Episode Parsed. Greys Anatomy - S18E16 
2022-05-06 08:19:24.1|Debug|Parser|Language parsed: English
2022-05-06 08:19:24.1|Debug|QualityParser|Trying to parse quality for Greys.Anatomy.S18E16.1080p.WEB.h264-GOSSIP
2022-05-06 08:19:24.1|Debug|Parser|Quality parsed: WEBDL-1080p v1
2022-05-06 08:19:24.1|Debug|Parser|Release Group parsed: GOSSIP
2022-05-06 08:19:24.1|Debug|AggregateLanguage|Using language: English
2022-05-06 08:19:24.1|Debug|QualityParser|Trying to parse quality for Greys.Anatomy.S18E16.1080p.WEB.h264-GOSSIP[rartv]
2022-05-06 08:19:24.1|Debug|AggregateQuality|Using quality: WEBDL-1080p v1
2022-05-06 08:19:24.1|Debug|AbsoluteEpisodeNumberSpecification|Series type is not Anime, skipping check
2022-05-06 08:19:24.1|Debug|AlreadyImportedSpecification|Skipping already imported check for episode without file
2022-05-06 08:19:24.2|Debug|VideoFileInfoReader|Getting media info from /Users/kimheymans/Downloads/Greys.Anatomy.S18E16.1080p.WEB.h264-GOSSIP[rarbg]/Greys.Anatomy.S18E16.1080p.WEB.h264-GOSSIP.mkv
2022-05-06 08:19:24.2|Debug|DetectSample|Runtime is over 90 seconds
2022-05-06 08:19:24.2|Debug|ImportDecisionMaker|File accepted
2022-05-06 08:19:24.2|Debug|EpisodeFileMovingService|Hardlinking episode file: /Users/kimheymans/Downloads/Greys.Anatomy.S18E16.1080p.WEB.h264-GOSSIP[rarbg]/Greys.Anatomy.S18E16.1080p.WEB.h264-GOSSIP.mkv to /Volumes/video/Series/Grey's Anatomy/Season 18/Grey's Anatomy - S18E16 - Should I Stay or Should I Go WEBDL-1080p.mkv
2022-05-06 08:19:24.2|Debug|DiskTransferService|HardLinkOrCopy [/Users/kimheymans/Downloads/Greys.Anatomy.S18E16.1080p.WEB.h264-GOSSIP[rarbg]/Greys.Anatomy.S18E16.1080p.WEB.h264-GOSSIP.mkv] > [/Volumes/video/Series/Grey's Anatomy/Season 18/Grey's Anatomy - S18E16 - Should I Stay or Should I Go WEBDL-1080p.mkv]
2022-05-06 08:20:49.7|Debug|DiskProvider|Setting permissions: 777 on /Volumes/video/Series/Grey's Anatomy/Season 18/Grey's Anatomy - S18E16 - Should I Stay or Should I Go WEBDL-1080p.mkv
2022-05-06 08:20:49.7|Debug|EpisodeService|Linking [Season 18/Grey's Anatomy - S18E16 - Should I Stay or Should I Go WEBDL-1080p.mkv] > [[9871]Should I Stay or Should I Go]
2022-05-06 08:20:49.8|Debug|CompletedDownloadService|All episodes were imported for Greys.Anatomy.S18E16.1080p.WEB.h264-GOSSIP[rarbg]
2022-05-06 08:20:49.8|Debug|DownloadEventHub|[Greys.Anatomy.S18E16.1080p.WEB.h264-GOSSIP[rarbg]] Marking download as imported from Transmission M1
2022-05-06 08:20:49.8|Debug|DownloadEventHub|Transmission does not support marking items as imported

Description of issue:
A couple of days ago I’ve got an error on my Mac stating the SSD was full. I checked the download folder and all of the downloads from the last couple of weeks (including different versions of the same episode) were still there.
When I manually import the files, Sonarr removes the movie file from the download folder but leaves the rest of the folder as is.
When the download runs automatically, it imports the file as well but leaves the original file too, filling up my SSD.

This is covered in the FAQ, torrents are hardlinked or copied to the series folder, while they are seeding.

https://wiki.servarr.com/sonarr/faq#why-are-there-two-files-why-is-there-a-file-left-in-downloads