Selected Parameter Listener Bug

Hey Hey, Back again with another bug.

For context, my controller has no buttons, just 8 endless encoders that send 10 bit messages shifted up to Pitch bend messages.

So what I am doing is using changes of the selected parameter to change the function of the knobs.

Sadly there is a bug when with the Selected Parameter Listener ( self.song().view.add_selected_parameter_listener ) when selecting parameters in devices.

Selecting mixer parameters works, but device parameters only work once and then stop working until Ableton is reloaded.

Thanks
A