Appointments are not redirecting

I have appointments in a thrive theme plugin called Thrive Lightboxes so that it will be a pop up.

The page works fine until it’s time for the appt plugin to redirect to the page I have set.

This is what Thrive themes said:

I checked the issue and the problem comes from the Appointments plugin. The redirect doesn’t work on the page because the Appointments plugin only adds the redirect script functionality if they detect their appointment shortcode in the content.

Since the lightboxes are added dynamically (their content is added only later in the page) the redirect script will not be added because the appointment shortcode is not detected.

is there a way around this?