Try to ensure there's no midi looping in your settings. For example, if
you're using MYoke with FruityLoops as sequencer, make sure only the
output of the needed MYoke channel is allowed. Then in Max, disable ANY
MYoke output (in Midi settings), keep only the channel you need as
input. If you got too much MYoke channels installed, try reducing to 1,
just to be sure...