Hi,
when I use VX-351 and Cp-251, they alter the knobs on the Minimoog, ok, it’s them work, but the alterations remain even after I disconnect all cables (except the accessory port cable).
Minimoog actually doesn’t work correctly: the mod wheel acts as pitch wheel, the sawtooth LFO is disappear (its light too) from mini, and so on… 
How to use these two modular expansions whitout this problem? and are these persist alterations normal? I don’t want do an hardware reset everytime… 