Here's my log snippet FWIW. Experiencing audio dropouts, seemingly related to USB audio interface. error 20:32:12.329960-0400 kernel AppleUSBXHCIIsochronousTransferRing: AppleUSBXHCIIsochronousTransferRing::enqueueRequest: request link failed with 0xe00002ee error 20:32:12.330010-0400 kernel AppleT6000USBXHCI@00000000: AppleUSBHostController::io: request completed with 0xe00002ee error 20:32:12.330049-0400 kernel AppleUSBXHCIIsochronousTransferRing: AppleUSBXHCIIsochronousTransferRing::enqueueRequest: request link failed with 0xe00002ee error 20:32:12.330054-0400 kernel AppleT6000USBXHCI@00000000: AppleUSBHostController::io: request completed with 0xe00002ee error 20:32:12.330077-0400 kernel AppleUSBXHCIIsochronousTransferRing: AppleUSBXHCIIsochronousTransferRing::enqueueRequest: request link failed with 0xe00002ee error 20:32:12.330082-0400 kernel AppleT6000USBXHCI@00000000: AppleUSBHostController::io: request completed with 0xe00002ee error 20:32:12.330111-0400 kernel AppleUSBXHCIIsochronousTransferRing: AppleUSBXHCIIsochronousTransferRing::enqueueRequest: request link failed with 0xe00002ee error 20:32:12.330113-0400 kernel AppleT6000USBXHCI@00000000: AppleUSBHostController::io: request completed with 0xe00002ee error 20:32:12.330141-0400 kernel AppleUSBXHCIIsochronousTransferRing: AppleUSBXHCIIsochronousTransferRing::enqueueRequest: request link failed with 0xe00002ee error 20:32:12.330146-0400 kernel AppleT6000USBXHCI@00000000: AppleUSBHostController::io: request completed with 0xe00002ee error 20:32:12.330171-0400 kernel AppleUSBXHCIIsochronousTransferRing: AppleUSBXHCIIsochronousTransferRing::enqueueRequest: request link failed with 0xe00002ee error 20:32:12.330174-0400 kernel AppleT6000USBXHCI@00000000: AppleUSBHostController::io: request completed with 0xe00002ee error 20:32:12.330212-0400 kernel AppleUSBXHCIIsochronousTransferRing: AppleUSBXHCIIsochronousTransferRing::enqueueRequest: request link failed with 0xe00002ee error 20:32:12.330215-0400 kernel AppleT6000USBXHCI@00000000: AppleUSBHostController::io: request completed with 0xe00002ee error 20:32:12.330241-0400 kernel AppleUSBXHCIIsochronousTransferRing: AppleUSBXHCIIsochronousTransferRing::enqueueRequest: request link failed with 0xe00002ee error 20:32:12.330245-0400 kernel AppleT6000USBXHCI@00000000: AppleUSBHostController::io: request completed with 0xe00002ee default 20:32:12.396994-0400 kernel + IOAudioEngine[]::pauseAudioEngine()