Roon Arc: Audio Device Error when USB Driver enabled

Software: Roon ARC 1.63 (344)
USB Dongle: Apple’s USB-C to 3.5mm headphone jack adapter

using a Google Pixel tablet with the latest version of Roon ARC. I’ve enabled the “USB Driver” in ARC settings, however when I try to play I get a “Audio device error.” Has anyone run into this? I am running GrapheneOS on my Pixel.

Thanks!