Unable to book a service form the Workspace booking page - No trainer members assigned

Unable to book a service form the Workspace booking page - No trainer members assigned

Until recently we were booking into individual services listed in the workspace booking page no problem yet now Bookings is telling us that there is no trainer members assigned to the class when selected.

The trainer is assigned and we can book into a class if we go via the Trainer booking page or the individual service booking page.

Anyone able to offer an answer to why this has occurred within the past week or so