The most likely reason for this is the services are toggled on to ‘exclude from Wedding Morning Scheduler’ or the service length is empty.
From the Services & £ tab click the 3 dots at the end of each service line, to show the below popup. Ensure the service length is not empty and the ‘Exclude from Wedding Morning Schedule’ toggle is off.
To regenerate the WMS click the X icon and wait for the WMS to clear and disappear, then click the lightening icon to regenerate.