ow ok, because I read that somewhere... happy to know!
I've found out something. I do live streams on Twitch.tv and I'm using Logic for that. The only way to be able to hear everything I used to work with the following settings:
In Logic: audio preferences -> input = my audio device (Komplete audio 6) and output = multi output device
In my Mac: audio midi setup --> I added multi audio device and checked both my Komplete audio 6 and built-in output
Also in my Mac, the only way to hear Logic and iTunes I need to put my input settings to my complete audio 6 and output settings to my built-in headphones.
That worked until I did the latest update. Now Logic refuse to open when I set the multi audio device on my output in Logic....
I don't know if you have any experience with this ??
So at least when I compose and not streaming I can work simply using my complete audio 6 in- and output,
but when I stream online I cannot use the multi output anymore....