Hi!
I have a ROLI Seaboard, OB-6 and Ableton live 11.
Connecting the ROLI to the OB-6 without going through Ableton works fine if I set the ROLI to use 7 channels only, I too have the issue of others with Ableton not having that setting for MPE.
But what I am REALLY missing, is the pressure response, to me the main selling point of MPE!
It doesn't seem to be mentioned in the manual addendum of update 1.6.6 either.
While the OB-6 responds to the Velocity of my playing on the ROLI, it does not respond to modulating pressure, or pressing lightly, and then increasing the pressure on the ROLI, which is very expressive on pad / strings sounds.
Please add that in a firmware update to your MPE support, without it makes little sense to have MPE in the first place, at least not to myself!
Thanks for an otherwise wonderful instrument