Thanks I really appreciate your help. Shortly after I last posted, the whole cockpit went into low-res mode and at that point I realised that I don’t even think MFS was even aware I was in that view!
So I submitted a ticket, shut it down and am going to sleep. Hopefully it will just fix itself when I boot up the software next time.
Another flight ruined because of yet another bug…oh well…
Thanks so much for your help.