DJI support suggested I reset factory defaults and reload the firmware using DJI assistant. Then recalibrate the IMU. (I did not expect this to fix the issue) I did this and for simplicity I flew one flight this morning to test it out. Same problems continue.
Full logs off the remote/tablet here:
Mavic Air Saga Day 3 - Google Drive
Txt log here:
DJI Flight Log Viewer - PhantomHelp.com
I pulled the DAT files off my phone of the last flight before I upgraded the firmware, notice how all the trends lay ontop of each other? This is something like I would expect out of a normal drone.
Then compare that to my flight this morning, notice how the YAW of each IMU does not agree and how the magnetic yaw is sorta floating around? The only thing that chanced was the firmware upgrade. (and a dozen recalibrations)
And then we have this other weird slow rotation going on. Here is a prime example of that where I let it go until it started rotating the other direction? Notice how it seemed to snap to the different IMU?
And here is yet another weird example of the slow rotation. In this one, it did not change direction but did go all the way to the other IMU... The IMU error seems to be in the opposite direction to the prior one so maybe that is why the drift behavior is different?
At any rate, due to the fact that there is only so much a person can do by resetting, recalibrating, testing etc. I have no choice but to attempt to work this out with DJI support. Unless someone else has any better advice? I suppose I could just wait for another firmware update and hope it fixes it but who knows....
I am convinced that the new firmware broke my perfectly good drone!