The 32 bit I'm guessing is just pretend working. 24 bit support was broken on early Mk2 T1s. If you go to Massdrop you can dig through the comments on the Mk2 for the firmware update to fix it. I hounded Massdrop to get Aune to make it right, but I'm guessing you're one of the earlier shipments.
That's quite a bruhaha in the comment section :)
So I guess I'm indeed a 'victim' of the first orders. Downloaded the official release of aune and saviaudio. They're talking about using eeprom utility to fix it. Now where can I find that? The only software link in the comment section installs a useless ASIO thingamajic.