Right Super key not opening Dash on Ubuntu 18.04

I have an odd issue with Super key. As for Ubuntu 18.04 LTS, it isn't opening the dash menu any more.

My mechanical keyboard layout is Brazilian. The only difference is that it has a Fn key where the left Super is supposed to be. So I only have the right Super.

I tried to keybind, but there is no option for the dash menu. I know some folks had this issue with Unity and they fixed with a tweak application. But now we have GNOME.

You may use (GNOME) Tweaks to achieve your goal.

First install Tweaks by running

sudo apt install gnome-tweaks

(or sudo apt install gnome-tweak-tool).

Then launch Tweaks and go to "Keyboard & Mouse" section. Select "Right Super" for the "Overview Shortcut" option.