On Friday I updated the server and all our clients from FM16 to FM17. On first sight this went perfectly but one of my colleagues reported that one field was suddenly "stuck". This field had a drop down menu with names. On the same layout several more drop down menus are present and these all work. The field that didn't work, referred to a field in another table, however. I discovered that the reason was that "Allow Creation of records in this table via this relationship" was turned off so the layout didn't have permission to edit a record in another table - easy to fix but this can be disastrous.
Is this a bug or did FM17 alter something that caused this to happen?