R3 is empty also on my boards, should be ok so.
Be aware that flying without calibration could and will result in drifting and some strange behaviour so fly close and not to high
LOG seems OK to me, nothing wrong for an uncalibrated AIMU.
Could you take a magnifying glass and look for the solder job on the AQ6 board where the DIMU socket is located.
Beside that without a second DIMU for testing i´m running out on ideas, sorry.