I have played a little with Midi-ox.
i can see control changes unlimited in performance mode after changing to another performance.
if i filter all control change messages between 47 and 50 all is working without errors.
with filter on i have always a B0 20 00 11 (CC: Bank LSB) at last after i switch to another performance.
with filter off i never see this message instead i get unlimited CC Messages till i get a error screen.
for example i get B0 34 01 01 ... (Status Data1 Data2 channel)