How to protect OT against unwanted linking to controllers?

Hi there,

just a question:
How to make sure, that Organteq Controllers are safe against linking to a hardware controller?
Maybe a dumb question. I know how to find the MIDI-Settings window, but it not really helped. On version 2.03 here.

What happened here:
I had Organteq as one instrument track in Cubase and other instruments on other tracks. I changed on a vienna instrument via midi learn to link it to one knob of my MIDI-Controller. And did not touch Organteq. After linking the other instrument to the controller knob I realised that something changed at Organteq, too. So when moving the knob at the hardware controller not only the Vienna instruments parameter changed, but also the crescendo (?) at organteq. Something I didn't want.

After that I took a look at the Midi Mappings page and hoped to identify the certain controller, but no dice.
after that I tried the freeze function for MIDI-mappings, not sure if this is the right way. So either to protect against unwanted changes or to have a way to undo things like that would be cool.

Any insights are appreciated.