Yarns changing microbrute's pitch bend

When i drive my microbrutes (two of them) through Yarns, i assume Yarns sometimes sends a MIDI message that changes their PB position. (2 semitones down). It happens when i change a track MIDI output in Live and then go back to the previous one.
It doesn’t happen when connected directly to my MIDI interface (MPK 261). Only when going through Yarns.
From the MicroBrute’s CC chart (hard to find, it’s in the Microbrute connection software manual), the only thing related seems to be RPN 06 which changes the PB’s range.

Hmmm that’s strange, I don’t see why Yarns would send that. Have you tried looking at Yarns’ output in a MIDI monitor app?

Yarns’ output whenever i change an output channel in Live (The channel, 9 in this case, is always the previous selected channel) :
20:12:58.968 From Pro40 MIDI Pitch Wheel 9 -8128
20:12:58.969 From Pro40 MIDI Pitch Wheel 9 -8128
20:12:58.970 From Pro40 MIDI Pitch Wheel 9 -8128
20:12:58.971 From Pro40 MIDI Pitch Wheel 9 -8128
20:12:58.972 From Pro40 MIDI Pitch Wheel 9 -8128
20:12:58.973 From Pro40 MIDI Pitch Wheel 9 -8128
20:12:58.974 From Pro40 MIDI Pitch Wheel 9 -8128
20:12:58.975 From Pro40 MIDI Pitch Wheel 9 -8128
20:12:58.976 From Pro40 MIDI Pitch Wheel 9 -8128
20:12:58.977 From Pro40 MIDI Pitch Wheel 9 -8128
20:12:58.978 From Pro40 MIDI Pitch Wheel 9 -8128
20:12:58.979 From Pro40 MIDI Pitch Wheel 9 -8128
20:12:58.980 From Pro40 MIDI Pitch Wheel 9 -8128
20:12:58.981 From Pro40 MIDI Pitch Wheel 9 -8128
20:12:58.982 From Pro40 MIDI Pitch Wheel 9 -8128
20:12:58.983 From Pro40 MIDI Pitch Wheel 9 -8128

When monitoring activity directly (without going thru Yarns) :

20:14:28.156 From Pro40 MIDI Pitch Wheel 5 0
20:14:28.158 From Pro40 MIDI Pitch Wheel 5 0
20:14:28.159 From Pro40 MIDI Pitch Wheel 5 0
20:14:28.160 From Pro40 MIDI Pitch Wheel 5 0
20:14:28.161 From Pro40 MIDI Pitch Wheel 5 0
20:14:28.162 From Pro40 MIDI Pitch Wheel 5 0
20:14:28.163 From Pro40 MIDI Pitch Wheel 5 0
20:14:28.163 From Pro40 MIDI Pitch Wheel 5 0
20:14:28.164 From Pro40 MIDI Pitch Wheel 5 0
20:14:28.165 From Pro40 MIDI Pitch Wheel 5 0
20:14:28.166 From Pro40 MIDI Pitch Wheel 5 0
20:14:28.168 From Pro40 MIDI Pitch Wheel 5 0
20:14:28.168 From Pro40 MIDI Pitch Wheel 5 0
20:14:28.169 From Pro40 MIDI Pitch Wheel 5 0
20:14:28.170 From Pro40 MIDI Pitch Wheel 5 0
20:14:28.171 From Pro40 MIDI Pitch Wheel 5 0

That’s super strange.

I’ll investigate…

Thanks a lot.

Good catch!

Any news on this one ?

No.

Wonderful.
Installing asap.