I cannot recheck a torrent because it says "file too large." The torrent is 847GB in total but is many small files, the .torrent file isn't even 2MB. I would love to know if there is a solution to this, because tixati is my favorite bt client for Windows, but I can't use it if I cannot seed my biggest torrents.

I fixed it. I don't know how but one of the rar files was larger than it was supposed to be. The specific folder only highlighted red after starting/stopping the torrent over and over, which made it possible to identify the issue.