AP 4.3 PreArm: Internal errors 0x1000000 l:169 imu_reset


I am using a cube orange with the latest 4.3 fw. I sometimes keep seeing this error while it has been sitting on the board with usb. Yesterday I saw it midflight also, i did not see any kind of filight behaviour changes.
What could be the issue. I have only seen this with cube orange so far.

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Hello all,

I have also seen this a few times across different (Cube Orange) copters with varying hardware setups. Usually this error occurs after booting up and prior to arming. A reboot resolves the error but now it has also happened during flight exactly as the OP describes - also without any noticeable changes to flight behaviour. Firmware was 4.22 & 4.23.

The error shows up in the flightlog as well when it happens during flight but there does not appear to be anything wrong as far as I can see…

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I am seeing the same thing as well, also on Cube Orange.
On Arducopter version 4.2.2

Did anyone manage to find any conclusions with this?

Is it potentially harmful in any way?

Update to latest Stable version.