Hi there!
I've been messing around Amplitube 4 and Scarlett 2i2 3rd gen for 2 weeks now.
I realized I lose the sound output on AT4 if I unplug the Scarlett then plug again it (USB port). The sound remains for all other apps but not AT4. I have to reboot AT4 all the time when i'm forced to unplug (happens), to have AT4's sound working again.
So today, after I had to unplug again, I decided, after plugging back, that I'll check the input/output settings on AT4, which were all set to Scarlett 2i2. For some reasons I switched back to my Mac's native input/output, to switch again to scarlett 2i2, and see if fixes the problem.
It didn't. But it created a whole other problem: I have no sound (output) whatsoever now in AT4. I rebooted AT4 many times, including my Macbook but it did'nt fix the problem. I still have sound for all other apps including internet browsers and Ableton. But AT4: Nothing. It's not the Scarlett, it must be AT4 alone.
I tried the same manipulation: switching from Scarlett to the Mac's native output/input devices in AT4, then back again to Scarlett's: nothing.
The Scarlett still gets input signals as I see from the monitor's led blinking when I strum my guitar with the volume pot open. But it stops here.
I checked online, I couldn't find a fix, so I'm asking here .
Hope we find a solution