OSX Catalina Headphone microphone issues with RingCentral Phone and RingCentral Meetings

While using the RingCentral Phone and RingCentral Meetings Apps, headphone microphone audio doesn't work.

I'm on macOS Catalina 10.15.3

RingCentral Phone: Release: 19.4.0.37336 (64-bit)

RingCentral Meetings: Version: 19.4.151918.1217

I've tried uninstalling/installing the apps and trying different type of headset. I've tried using a cheap set of in-ear headphones with the mic attached to one of the cables and an over-ear set similar to a 'gaming' style head set.