Not a bug, however a feature request.
There are some show’s where TVDB ordering is very off. It has been raised with them, however, for whatever reason, they insist it should remain as it is.
TVMaze / EPGuides have the correct ordering however, so in these cases, it would be great to be-able to go into a shows settings dialog box, and set the “Metadata Agent” to TVMaze.
Example of show: Ghost Adventures
TVDb = https://www.thetvdb.com/series/ghost-adventures/seasons/all
TVMaze = https://www.tvmaze.com/shows/926/ghost-adventures/episodes
In particular, season 18 and season 19.
TVMaze is using scene ordering for this series, so would be automatically downloaded.
TVDb forum discussion: https://forums.thetvdb.com/viewtopic.php?f=18&t=56675&p=151743&hilit=ghost+adventures#p151743