Next Aired Widget missing shows

Does the Next Aired widget get populated from the Next Aired add on?

I ask because there is a show (Schitt’s Creek) in my library, that i have watched before, with a new episode tonight and I noticed it is not showing up in the Next Aired widget or the Next Aired add on. Does the add on use TVDB to get the airing dates? If so, that is odd because today’s episode is listed there.

Coincidentally, the episode is not listed in the Upcoming section on Emby either. Not sure if this helps to pinpoint the issue.