The RingCentral Glip app appears to not work well with Mac OS Catalina public release version. Specifically, when launching a RingCentral Meeting from within the App, the user will see a black screen briefly, then the entire Glip app will crash. You are able to start/join a meeting from the RC Meeting App, but not from within the unified Glip app. Do you know when Mac OS Catalina 10.15 will be supported as it is no longer in beta? Also, all RC apps should be notarized with Apple to allow them to be opened without having to allow an exception. Currently Gatekeeper will not allow you to open the RC Glip app.