I added the requested info in an edit.

I'm running filebot with the amc script on series called "V" and "H", but filebot does not match them on TheTVDB. However, both series actually exist on TheTVDB: https://www.thetvdb.com/series/v and https://www.thetvdb.com/series/h. In the output, I get this: Group: [tvs:null] => [the list of input ...