MPE problem with Expressive Strings?

Hi!
I’m playing with my Seaboard M and Arturia Synths. I think I have found a bug with Expressive Strings:

  • With my Roli in MPE mode, I cannot modulate any parameter with Slide (mpe mode enabled on the VST)
  • Roli in classic midi mode, Slide as CC74, synth control is ok.
    With Pigments and Roli in MPE mode is ok, but bends are not smooth but that’s another story.
    So here is the problem, if I use Augmented Strings and Pigments, I have to switch from one mode to the other if I want expressive playing…
    Can someone else confirm?
    Thanks!