Hi @skoell,
That’s not surprising, unfortunately. We do have a list of upsampling cases that choke up ARC on Android, but fixing those is part of a broader project to fully integrate ARC with custom bit-perfect Android DAP implementations like those of the iBasso’s DX series.
This has always been a roadmap item; now it’s an actual ticket in production. We should have a fix for this out within the next few builds of Roon/ARC, but we will continue to investigate workarounds in the meantime.