How to fix keyboard layout bug in Ubuntu 18.04?

Question

ubuntu

I have two laptops, both recently upgraded from Ubuntu 16.04 to 18.04. Bug on both
Bug: sometimes the selected language is no longer displayed on the top panel. I start typing something, I understand that the layout is not the same, I switch to another one (Alt + Shift) - the layout appears on the panel, but does not change. I switch again - everything is okay, it changes. I use only two layouts: ru and eng .
Can anyone come across? How to treat? It's kind of annoying

Answer 1

This bug has been updated since February, but proposed. Temporary solution (I think with the next update it will already be in stable):

echo deb http://archive.ubuntu.com/ubuntu/ bionic-proposed restricted main multiverse universe | sudo tee /etc/apt/sources.list.d/proposed.list
sudo apt update
sudo apt install gnome-shell
sudo rm /etc/apt/sources.list.d/proposed.list
nohup gnome-shell --replace &

If you need to roll back, then:

sudo apt install gnome-shell/bionic
nohup gnome-shell --replace &

Answer 2

The bug was fixed in gnome-shell 3.30.2-0ubuntu. For version 18.04 still in work. As a temporary solution, restart the shell.
-Alt + F2, in the window that opens, enter R and press Enter