> Is this functionality not working on your end?
No, it does not seem to create them properly in the future and only randomly for randomly chosen Events. I have not been able to determine any sort of pattern or any misconfigurations. I have attached a screenshot with the Recurrence Rules for an Event that was reported to have not created its Future Events properly (Therefore not showing within the Query above). The Events in question within the Category for the Query all have very similar Recurrence Rules (Slight changes for Days or Time Slots, but all of them are Weekly).
I’ll set the Debug constants on Production, but I haven’t noticed anything with them active on my Local copy. If this issue pops up again I’ll be sure to check debug.log for anything funky on Production.