Today I loaded a saved project and had no sound out of the master. I could see audio entering it (with a plugin inserted) though. I checked F4 and found that I could not assigned a hardware out to the stereo out nor could I click the little box with the check in it to unfold the left and right channels.
In the end I just deleted the bus and created a new one, then reassigned all my channels. Just curious if this is a new bug as never encountered it before.
How bizarre, I’d have put this down to just one of those things that occasionally happen (on my occasionally flaky old interface) but it happened to me too last weekend though never before …