Motor Balance fail

Hi all.
Is there a known issue with the auto log analysis tool?
Im getting a FAIL on the motor balance test but the test gives 6 PWM values on a quad. They are all around 1400 except the 5th which is about 900.
Analyzing the log in more detail shows RCOUT 1,2,3,4 all well balanced.

Thanks.

I have done an ESC calibration but made no difference.

og File C:\Users\Vince\Documents\Mission Planner\logs\QUADROTOR\1\2017-01-21 14-15-51.log
Size (kb) 11237.7626953125
No of lines 133349
Duration 0:08:06
Vehicletype ArduCopter
Firmware Version V3.4.3
Firmware Hash 9a3a0d4e
Hardware Type
Free Mem 0
Skipped Lines 0

Test: Autotune = NA -
Test: Brownout = GOOD -
Test: Compass = GOOD - mag_field interference within limits (19.37%)
Max mag field length (619.14) > recommended (550.00)

Test: Dupe Log Data = GOOD -
Test: Empty = GOOD -
Test: Event/Failsafe = GOOD -
Test: GPS = GOOD -
Test: IMU Mismatch = GOOD - (Mismatch: 0.48, WARN: 0.75, FAIL: 1.50)
Test: Motor Balance = FAIL - Motor channel averages = [1445, 1478, 1473, 1467, 983, 1494]
Average motor output = 1389
Difference between min and max motor averages = 511
Test: Parameters = GOOD -
Test: PM = NA -
Test: Pitch/Roll = NA -
Test: Thrust = NA -
Test: VCC = GOOD -

is the copter actually balanced on both axis??

Yes it is. The low PWM value is the 5th in list of 6. It surely should only check first 4 on a quad. I’m using RC5 and RC6 for camera controls.

Got a log? There may be clues in the parameters.

Is there a known issue with the auto log analysis tool?
Im getting a FAIL on the motor balance test but the test gives 6 PWM values on a quad. They are all around 1400 except the 5th which is about 900.
Analyzing the log in more detail shows RCOUT 1,2,3,4 all well balanced.

This particular test is going to need quite an overhaul to account for
changes in recent master.

In the meantinme you can ignore the values for the other channels.