I can reproduce the issue with
TheTVDB and the following sample file:

I recommend using
Episode Mode: TheMovieDB instead.

You can work around the TheTVDB issue by using
SHIFT-CLICK <database> and then entering
"Ghosts US" manually.

FileBot 5.* uses
TheTVDBv4 by default, and this seems to be the issue. You can switch back to
TheTVDBv2 by running the following FileBot configuration command once:
Code: Select all
filebot -script fn:properties --def net.filebot.WebServices.TheTVDB.v2=true

Note that
TheTVDBv2 is scheduled to shutdown, and will stop working at some point in time in the future.
EDIT:
Looks like FileBot stumbles if it runs into "a series without a series name" search result which is apparently possible in the new API. I've reported the issue:
https://github.com/thetvdb/v4-api/issues/280