In a case of “that’s really weird,” the issue I described above appears to only be a problem on one of the sites in my multisite network:
https://ddhs.ddschools.org/
My desire to have only “that day’s events” show up on initial page load works with all my other school sites within the network. Examples:
https://phoenix.ddschools.org/
https://darien.ddschools.org/
https://turtlecreek.ddschools.org/
It’s basically the same shortcode being used on the problem site (first link) as all the other sites. The only thing different is the category names specifying what calendars are displayed.
Thoughts?