I’ve used the 1.2.4 version of DJI assistant 2 downloaded last saturday on a HP laptop used with the attached monitor and without any external monitor connected.
I’ve got a simular issue with my Mavic Pro received yesterday.
On the calibration screen one sensor shows dark grey boxe. The other is ok. So, i will return the Mavic this monday for replacement. I am very disappointed about DJI quality control...