Just looked at the xyz switch and that definitely looks like the cause of the problem as I put the car into drive with the handbrake on and I was able to easily push it into third gear from underneath the car were the auto transmission cable attaches to the xyz switch! This leads me to believe...

I’m currently in Australia and have bought a disco 2 with what seemed to be no problems! I have had the car for 3 months now and it’s started to not show a D on the dash while in drive however still drives like normal until the car comes to a stop then acts like it’s in third however still...