The situation in this topic seems like it might be the same situation I described over here:
In that topic, I think the totality of my description of the use-case may have swamped the core observation, which is that MG3 UI items (eg. mix levels, chain on/off, etc.) which are tied to a CC in the Patchbay cannot be relied upon to retake upon patch reload the state they had when last the patch was saved.