If reacording my microphone, I only get the sound in the highlight/replay/clip on the left ear. This is a typical issue I also have with other applications like e.g. OBS.
I guess this is due to me using an XLR microphone and an audio interface. For some reason this causes some programms to only play the microphone audio on the left ear. In OBS this is for example solved by having a box you can check that makes the stereo signal into a mono signal and thereby avoids the problem.
So my suggestion is to implement such a feature here in medal.tv.