Hi Holly,
Thanks for checking out our plugins!
While Events Calendar Pro does support recurring events, unfortunately neither Event Tickets (for free RSVPs) nor Event Tickets Plus (for paid tickets) supports registrations on recurring events. You can technically add tickets to a recurring event, but it will be the same ticket for each event. So users could add tickets from two different dates of a recurring event, but they would have 1 ticket in their cart with a quantity of 2.
Sorry I don’t have a better answer for you, but please let me know if you have any more questions!
Thanks,
Jennifer