This is great news!

You should start ring with ring.cx, _not_ gnome-ring.

If it still does not work, try launching dring:

/gnu/store/v9scpdy0zip94gsfl75zlw1alvgi6xkq-libring-20190319.4.a16a99f/lib/ring/dring -dcp

Now if it works for you I really wonder what's wrong with the GUI on my end...

-- 
Pierre Neidhardt
https://ambrevar.xyz/