Multi-participant registration fails: requires_capture

A pretty simple event registration that allows multiple registrants fails on the final submission and returns this error: Stripe This PaymentIntent's amount could not be updated because it has a status of requires_capture. You may only update the amount of a PaymentIntent with one of the following statuses: requires_payment_method, requires_confirmation, requires_action.

NOTE: In Test/preview mode.

The same form works with PayPal. A very similar registration form for a different event (single registration only) works as expected. Its frustrating that the general form architecture here requires pre-approval of the payment, but so it is.