The information (from a colleague who starts the meeting and records it):
@howardm19 So far in my testing I have not been able to recreate the issue of missing audio. I have another test planned for tomorrow with a newer Mac just in case it is somehow related to the newer M1/M2 Macs (mine are Intel-based). If we are still unable to recreate the issue the next step would be to have you host a test meeting with one of our support representatives so they can connect to your computer and investigate.