TOPIC: Prerequisite check

I have one user (as far as I know) that can't register for an event even though she is registered to the prerequisite event. To register for the event "B" a registration has to be done for event "A".

In the user panel and backend we can see that a registration for event "A" exists and we have also tried to remove the registration and re-register several times.

When trying to register the event "B" the user gets the on screen message from "Prerequisite Event Message" and the event "A".

Other users can register for event B after registering for event A and there is no attended check enabled. Also submitted a ticket (TECH-YA0690THW0).