Sara, a clarifying question:
Are you using RingCentral Meetings or RingCentral Video?

The issue of not being and to copy and paste anything into Ring happens weekly for me. I have to delete and restart the program every single time. I keep looking for ideas or others experiencing the same issues but have yet to find it. I copy phone numbers and text often into Ring and when it doesn't do this, its not only inconvenient but take time to resolve. If anyone else is having these issues also and has found a solution, I would like to read it.