Hmm, it's weird because that kernel stereo/mono button doesn't or shouldn't change to actual stereo or mono channel. It just forces the kernel processing to be exactly the same in both channels which is what the mono mode does. So it's possible this is a Cubase specific bug. G, what do you think?
Could be. Heres an example. If im playing a track it will be in stereo. If i go to the kernel page and click stereo it will now say mono-l. If i play back the track now, only the left channel of the buss is producing audio.