When using the scheduling assistant to create booking.Instead of clicking on the book button you click within the white "available time area" the "create booking" window pops open and sets the time and date that you clicked. See the screenshot for the 2 areas within the schedule board i am referring to.

This functionality is working within our dev and prod environs but is not working within our UAT environment.

Has anyone had this issue before and does anyone know how to solve this?

Thanks in advance for your help.