cable and motor buzz from 80-120mms

yep...re-visit from the archives (Julyy '22?) pic there https://discord.com/channels/582187371529764864/844167067757182980/998324814509002944 ... my cable as supplied by RR (purchased early summer this year) are the dead opposite of that pic! pic motor BLU RED GRN BLK board BLK GRN RED BLU my motor BLK GRN RED BLU board BLU RED GRN BLK not that it makes a hill of beans difference as both are reversed. Just found it interesting that RR changed things up over the distro of their product line. Yes... I have the 'bad buzz' at 80-120 mm/sec (just finished testing) Motor coil windings (LDO doc in that thread linked above) are A-C BLK/GRN B-D RED/BLU The Octopus sockets (same orientation) are B1 B2 A2 A1 so ... regardless of color... 6431 at the motor (socket frame divots at the top) 6=D 4=B 3=C 1=A A and B are denoted as the same polarity ref to C and D according to the LDO drawing (again in that link above) So it looks like my cabling motor end MATCHES the LDO drawing as supplied by RR .
So ref'ing the Octopus docs, board connector socket (divots up) pinout is B1 B2 A2 A1 So that would be RED BLU GRN BLK at the board My steppers run the correct directions for the as 'out of the box RatOS configuration BUT I DO have the buzzing. So after all this ... either LDO can't draw a drawing and label it right... or BTT's board pin out info is wrong.
I'll know after I swap some pins around and repeat the tests. The questions raised in that now archived thread, boil down the to the phasing of the two coil windings in the stepper. I'l have to dig through some old docs, but I believe this is a side effect of micro stepping. Full stepping supposedly would not see the phase difference (creating the resonance of two technically AC coils fighting each other.)