FIXED: RSVP with Payment not processed completely

[AaronStorey]

Regardless of using PayPal or Stripe the problem you are describing of the Cart Transaction not applying properly to the Event is a known issue and being looked at. Check out this other thread, it started out worse and was partially fixed:

FIXED: Events will not allow registration

Yes, I am available tomorrow evening, I will also do some more testing tomorrow as well.