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.