Series not populating

Hello,
I've not found an answer in the forum for the issue I am having.

I currently have 6 series. On the backend sermons seem to associate appropriately (I can filter by series and everything looks good). On the front end, if I click on the series name (in the table) only 2 of the series will result in a populated list.
The other 4 series return with the message "Sorry, unfortunately I didn't find any Sermons".

I'm at a loss as to what to try next to fix the issue. Any ideas are appreciated.
Thanks!

Check that each series, sermon and speaker have a valid and public category assigned. And make sure your menuitem does not filter the category (or that the category filter is correct).
The reason is that SermonSpeaker does permission checks based on the assigned category.