looks like I find out what the issue was, the start and ending date refer to when a single events start and finish, I was instead entering the latest date when the all event recurrence ended
sorry for the late reply, I have been away, the link to the website is the following: https://v3point1.com/scs-demo/ and I have attached the image as per your request.
To be honest I do not know if it happens with others, I have not tested it yet.