development – SharePoint 2019 remote event receiver is not firing when receiver service is https enabled

From c# application using CSOM, I have registered events on a particular document repository. Also hosted a RemoteEventService a WCF service which implements IRemoteEventService and implemented ProcessOneWayEvent() as per our business logic.

Above application is working if that RemoteEventService is http enabled, and it is not working if I enabled https.

I have installed self signed certificate correctly, but handshake is not working if I have added any item or delete any item, event is not fired.

Any help is greatly appreciated.

Regards,
Rama