Thanks for your patience on this issue, things have been quite hectic here lately!
We pushed a change to the develop branch at the end of last week which should resolve an issue where audio devices were not restarted correctly after their samplerate was changed externally.
I’m not completely sure that this is the same issue you’re seeing (it’s not limited to matching-pair devices), but the symptoms sound similar, i.e. the displayed samplerate is not updated and audio output ceases. Given this, there’s a reasonable chance that the following fix will resolve the issue you’re seeing.
Please try out the change and let us know how you get on. Thanks!