We currently have three microphones connected to OBS (1, 2, and 3). When mic 1&2 are on, everything sounds fine. When mic 3 is turned on, mic 1&3 sound fine, but mic 2 sounds robotic. When looking at the mixer, the sound bar for mic 2&3 increases simultaneously. And yes, we have tried replacing the 3rd microphone. This seems to primarily be a problem when we have 3 mics plugged in. All 3 mics are USB mics. Thanks for the help!