Tempo issues using MCON in Mappings?

[kriskeyman]

I figured out the issue!

This only occurs when a single MIDI slider (in my case on Sweet Sixteen #32), is set as source controlling multiple MIDI CC changes (in my case, delay send for 2 tracks on Machinedrum). Looked like this…

MCC HC1 #32 > MCON TC10 #91
MCC HC1 #32 > MCON TC10 #115
This causes serious tempo fluctuations in setup when slider is moved!

I2C SCCV #7 (F8R) > MCON TC10 #91
I2C SCCV #7 > MCON TC10 #115
Tempo good when slider is moved.

MCC HC1 #32 > MCON TC10 #91
MCC HC1 #33 > MCON TC10 #115
Tempo good when slider is moved.

So not sure if this is a bug somewhere or just a limitation in MIDI spec since I2C seems to be okay.