So some actual feedback about the firmware:
For context, I have my Axe III connected to my Focusrite 18i20 via SPDIF: Guitar In to the 18i20, SPDIF out to Axe III SPDIF IN, Axe III SPDIF OUT to 18i20 SPDIF IN, 18i20 OUT L/R to monitors. Clock source on the AxeFX is configured as external (SPDIF/AES IN). I also have a Mimiq in a loop (Out 3 -> In 2).
Since installing 27.02, about 3 or 4 times now I've had a problem where the audio is failing somewhere. I get no audio registering on Out 3 or In 2, but I do see signal on In1 (which is configured to use "Digital" as its input source, which is configured as "SPDIF").
When I turn on the tuner, it's completely frozen. No movement whatsoever.
Sorry I don't have more details atm, this last time it happened twice in a row, once right when I sat down to play and powered on the AxeFX, and then again after I tried rebooting. It only came back up after I waited 30 seconds before rebooting a second time.
I'll try to get more information from the unit the next time it happens, but just wanted to put it out there on Fractal's radar, as well as see if anybody else has experienced anything like this since install FW27.