That's not correct... this have nothing to do with props at all.
This is a flight controller that gets a major brain fart for some unknown reason ... if this craft still is within warranty I would contact DJI about this.
Below is from the second of in total 2 major FC errors making the craft ascend uncommanded ...
The red graph is the height relative the HP
The green graph is the vertical velocity ... negative value is ascend & positive descend
The blue graph is a calculated velocity difference between the IMU & GPS ... normally this is very close to zero
The black graph is the throttle input ... negative value for descend & positive for ascend
Pink background color is tripod mode
Green background color is auto landing ... this time by means of an app command done by the pilot
View attachment 141966
Note how well everything lines up to the very left in the chart, a negative throttle input (black) means a increased positive vertical velocity (green) ... & the height (red) decreases. All good so far.
At 555,9sec I've placed a chart marker ... it's there the FC get it's second major brain fart during this flight. The red increases, the black throttle is neutral & the green vertical velocity starts to go more & more positive step wise which should mean a descent but here the barometric sensor instead reads a ascent (red).
All goes haywire at about 590sec ... the craft ascends up rapidly even though the craft is in auto landing mode with a full negative throttle from the pilot ... all this goes on until about 625sec with the craft at approx 177m height ... and all goes back to normal.
Looking at how the FC commands the motors during this period ... the command percentage goes erratic up near 100%... it's clear that the flight controller want's the motors to spin faster... and all back to normal from 625sec.
View attachment 141967
... As the FC commands nearly 100% to the motors ... it also gets nearly full RPM's seen below
View attachment 141968
If we then check the DAT log event stream we see this when it all starts ...
View attachment 141969
And when all goes back to normal ... "fault off" as nothing have happened!
View attachment 141970