I just flow from EGPH to EGLL the week before on IVAO's event.
When I was in final approach and holding at LAM, the ATC told me to swap to Runway 27R instead of Runway 27L for my arrival.
But as I was going to change the Arrival Runway and enter the initial approach fix into my MCDU, the whole thing stuck, just like the one in the photos.
I can do nothing on the MCDU since it stuck at that page and I cannot activate the Approach. It still stuck at DES mode after I touched down and shut down my engine.
I still not able to figure it out what was happening.
Do anyone have any solution or idea of what was going on?
I am using the FSX version.