As KelvinBrit0, I have to warn about the last update too. I have always used this amazing tool with Virtual Cable A and B (I'm a Mac user) for live streaming and hybrid events. Since the last update, it randomly stops working and on Zoom you can hear the terrible echo effect, like you were connected with two or more devices. It happened first during a recording in OBS and I wasn't able to fix the problem immediately, I had to restart everything and clear all the audio tracks on OBS. Another strange thing: since the last update if you go on the audio tracks in OBS and click filters, you see Audio Monitor item deactivated, but it's working. And keep in mind not to click on that to activate it again, otherwise it will stop working and start the loop effect. Please fix it!!