When I:
1. Create a new recurring event, for instance, starting and ending on 7/11/13 from 8a to 5p recurring every day ending on 7/15/13.
2. Publish then view the event. (At this point if I look in the event edit list I see 5 instances of the event, as expected.)
3. Edit the event, click on an event category, and update the event. (Still have 5 instances in event edit list.)
4. View the event, edit the event and update.
I now have only four instances of the event. Each time I repeat step 4 I have one fewer instance, until there is only the 7/11/13 instance remaining.
Any suggestions on why this might be? I’m running a clean install of WP 5.3.2 with Twenty-Twelve and no plugins except The Event Calendar 3.0 and Events Calendar Pro 3.0.1