I modified some Shaun the Sheep games (which is a TV show) and put the series and franchise as Shaun the Sheep and put "Wallace & Gromit" as a spin-off, which was listed as a series of one of the games.
The Shaun the Sheep show itself is a spin-off of the Wallace & Gromit show. However, it has its own show and games. I noticed that my change in one of the games was changed to put Wallace & Gromit back as a franchise and remove Shaun the Sheep from the series (despite having multiple games under that brand).
I didn't understand the reason for this. Why can't Shaun the Sheep be considered a series or a franchise?
https://www.igdb.com/games/shaun-the-sheep-shear-speed/changes/2203066
https://www.igdb.com/games/shaun-the-sheep-sheep-stack/changes/2203065