Good evening Jeff and welcome back!
Thank you for reaching out to us.
We are sorry to hear about the routing error.
I would love to help you with this topic.
The good news is that this is not default behaviour, so we should be able to find the cause (and the resolution for it).
As a first troubleshooting step, could you please provide us with your system information in a private reply ? (following the instructions found in the link)
Could you also provide me (in a private reply) screenshot links to the setting of the event above and of the RSVP ticket so that I can run some testing ?
p.s.: I just did a test on your site which you can ignore.
Have a great day!
Geoff B.