On cosmic, even without turn on the proposed channel, with gnome-shell 3.30.1-2ubuntu1, I can't reproduce this issue.
With the gnome-shell 3.30.1-2ubuntu1.18.10.1 from the proposed channel, it still works fine.
On cosmic, even without turn on the proposed channel, with gnome-shell 3.30.1-2ubuntu1, I can't reproduce this issue.
With the gnome-shell 3.30.1- 2ubuntu1. 18.10.1 from the proposed channel, it still works fine.