Currently when a release is grabbed the torrent name is used to specify the quality (for example WEB-DL). Once it is downloaded the filename is then looked at, but if the filename doesn’t have a quality it defaults to HDTV. I think a setting to import as the quality it found when grabbing when the filename doesn’t state one would be useful because I’ve always found the grabbed quality to be correct anyway.
I know that the release group should have the quality in the filename but there are some good release groups that miss it out.
As a result, after importing it as (for example) HDTV, it then sees the same torrent name on the next RSS sync and tries to grab it again because it sees it as WEB-DL.