I think your seedbox' torrent client gets that "unregistered torrent" failure and it is the reason why these torrents show a red uploading sign.
It will just been hidden in another view. I don't know which torrent client your seedbox uses to search where / how to look for the tracker status message in its interface.
I have logs that I can look at whenever there is a problem with a torrent. However, the "error status" in red, doesn't always mean there is a problem. I get red statuses a lot when using certain "open tracker/announcement" URLs. And even then, sometimes error messages aren't always straight forward (pardon the pun), and you still have to go digging for answers. I'm just glad there was no real problem. :hug: