Drone loses armed status after a while

Hi, bresch, thanks for your reply. I will test this.

In fact, why i use 1.7.3 is because I was not able to make a simple mixer work in the 1.8.2 and also the mocap/pose was not able to “guide” the drone. That is why I switch back to 1.7.3.

I followed the steps Modifying mixer file without reflashing
my mixer file

M: 1
O:      10000  10000      0 -10000  10000
S: 0 0  10000  10000      0 -10000  10000

M: 1
O:      10000  10000      0 -10000  10000
S: 0 1  10000  10000      0 -10000  10000

M: 1
O:      10000  10000      0 -10000  10000
S: 0 2  10000  10000      0 -10000  10000

M: 1
O:      10000  10000      0 -10000  10000
S: 0 3  10000  10000      0 -10000  10000