Just reinstalled AT4 on a new SSD and using the Windows Audio in MIDI Setup menu I was experiencing latency.
I remembered that ASIO drivers were needed to fix this problem.
But after installing ASIO4ALL and restarting my computer, AT4 is not recognizing input from my Scarlett Solo at all.
Even if I switch back to Windows Audio nothing registers on the AT4 meters.
I'm on input two of the Solo (input 1 is an XLR input) and as usual, I am switched to input 2 in the bottom left corner of AT4.
The Halo around the input level on the Solo is showing that my guitar and cable are fine.