got the same issue with a 695, 007
if you try and go lower than 10k, it shows 9990ft temp then sets back to 10k....
not sure if this is a bug or standard?
I know that when you fly it declutters airspace according to level you are at, but nothing in manual re this 10k limit.
I am very unlikely to ever fly over 5k so not really interested in the space above!