MacOS: Software not recognizing Open DMX USBĪ common cause of not finding the device within your software is conflicting drivers, or multiple pieces of software open at the same time trying to access it at once. This guide is designed to help Open DMX USB users discover their device which is currently not being recognized or found by their Windows based software such as DAZL, Freestyler, LightJams and QLC+. Modified on: Mon, 21 Nov, 2022 at 9:10 AM Solution home DMX USB>DMX: Open DMX USB (70303) Open DMX USB: Windows software not recognizing device