Dear Goran,
I think i have found the reason cause this issue with TBM.
Please see the attached the image:
1. If the serial port yoke has been ticked, then i load plane, the TBM cannot show the map.
2. If the serial port yoke hasnt been ticked, the map of TBM works well.
I have tested with aircraft with default G1000(DA62, C172), only TBM met this problem if i ticked serial port yoke.
As i said i use the mouse to control plane, ticking serial port yoke can help hide the cross of mouse during flight, which make me avoid the unintenioned touching button.
Hope this small issue could be fixed