Usually a reboot gets the audio going for me if I see failed to issue reset (happens on booting from power off). Lukas speculates on a fix here and another person provided this line in order to rebind the device without a reboot:
echo 2-001a > /sys/bus/i2c/drivers/wm8960/bind
I was able to replicate the issue and test the above line out just now. I had to “sudo su” first. Then the audio device showed up in alsamixer again just fine.