This happened literally overnight. Played it yesterday and it was screaming beautifully. Picked it up today and wondered why the tuning had dropped down to low B. Retuned it, it went out of tune straight away. Looked up and saw that. It hasn't been dropped or whacked, the glue holding the headstock to the neck just let go.
When you have 7 tonnes of pressure vs a scarf joint and wood glue and a bad angle? Eventually the 7 tonnes of pressure is going to win.
This is why you are going out of business.
Now I am sad.