Hello,
I added Spartacus to my list today. I was a able to download all episodes except S02E05. I updated my mkvmerge to 95.0. I also tried to use ffmpeg. But in the end I receive error 702.
This show seems to be available only in H.264. It is getting downgraded when I am choosing AV1.
So I am using H.264, 1080p, German/English audio, German/English sub, mkvtoolnix / ffmpeg.
I deleted this episode several times and re-added it. After downloading S02E05 it says "being processed" (translated) before I receive this error.