Hi @JANG_MIN_HO,
Thank you for the post. We merged a ticket issuing a fix for USB DAC’s causing crashing in ARC on Samsung devices - this was pushed as part of the ARC 1.0.47 release two weeks ago.
First, can you please specify the symptom you’re seeing? If you don’t have audio output functionality but the app stays open, you’re likely encountering a liminal support space with the USB driver as the moderators mentioned above.
However, if ARC is crashing completely when you connect the DAC, we want to verify you’re testing with the fix in place, so we can escalate this report.
Is this an issue you’re still encountering on the most recent build of ARC, 242?