Due to the way Windows groups input channels for USB-audio devices with more than one input, many multi-channel audio interfaces will show all of their inputs in pairs in Windows sound settings, in the same way that outputs are grouped in pairs for stereo audio.
This can present an issue for many conferencing applications such as Microsoft teams that take their input choices directly from Windows, and will therefore pan a single microphone to the left-hand side, rather than allowing a 'dual-mono' single input.
Example of iD24 input pairs shown in Windows 11 Sound Settings
Microsoft Teams mirrors Windows Input Selection
The simplest workaround for this issue is to use the Loop-back functionality of your interface as shown below.
1. Select Loop-back as the Microphone for MS Teams (or other conferencing app where discrete inputs are not presented).
2. Set your Loop-back source to Cue A and select it on the right hand side of the software mixer, then raise the fader on the desired mic channel and ensure the pan pot is centred as shown below.
Note: For iD4 MK II, there is no need to use a cue mix and you can simply follow the guide from page 24 in the product manual, copied below. Ensure the 'Main Output 1/2' fader is kept at zero in this case to avoid sending the audio from the person / people you are speaking to back to them.