[Ring] ring-gnome 2018-02-01 22:36:43 UTC incoming call on all instances?

[Óvári]

Hello,

We tested Ring with 3 computers all with ring-gnome 2018-02-01 22:36:43 
UTC installed.

The caller rang using the "Place audio-only call" button.

The other 2 computers were signed into the same account which was being 
called.

Only 1 computer of the 2 computers heard the ringing, the other computer 
did not.

Is this a bug as all instances of Ring should hear the call?

Thank you