One of my scenes has a video capture device (C920), an NDI source (Skype from another laptop), and a BMD mini studio that captures video from a third computer. This scene has always worked fine until recently. Now there is an audible "pop" when I switch from that scene. You can't hear the "pop" in the audio mixer that handles audio from both computers, nor can you hear it on the monitor out on the streaming computer. You only hear it on the recording, or the livestream, of the program when switching from that scene. Clicking on eat eyeball to disable with the NDI source, or the BMD source, and thee "pop" goes away. Hav tried everything I can think of to eliminate the "pop" to no avail. Any suggestions very much appreciated.