We can't access previously entered details in the Service Details text box, this used to work?

Hello Everyone, I'm pleased to find this forum!  Greetings from Liverpool UK! 

When using Bookings, we recently found that when we have created a booking and added information to the service details box, when we go back to edit the information in service details (usually to add a bit more information), the ‘details’ field appears to be empty. 

This was working previously, only a few weeks ago.

We wondered if Microsoft have made a change, where the original details are no longer surfaced?

Any information appreciated, thank you, Claire and Rhian (Liverpool)