South Park Specials Missing Meta Data

Some of my South Park Specials, such as the Spirit of Christmas are pulling meta data, but others, such as Post COVID are not. Any ideas?

The files are are named similarly like such: South Park S00E03 The Spirit of Christmas.mp4 South Park S00E43 Post COVID.mp4

The season/episodes numbers I got from thetvdb.com and are all in a sub-folder called Specials.