Ubuntu 21.04. Flatpak install not working

When I go to flathub.org I select a flatpak to install and hit Install but nothing happens. A blank white window appears with a small blue circle that just spins and spins. See image. How to fix this? I googled but no helpful links. Thanks.

Do you have Flatpak install on your system? Also, do you have :

sudo apt install flatpak
sudo apt install gnome-software-plugin-flatpak  #needed to mke it work with software center
flatpak remote-add --if-not-exists flathub https://flathub.org/repo/flathub.flatpakrepo

Also recommended to restart the system?!


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I did a restart and that seems to have fixed it. Thanks!

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@m3110w Can you mark as resolved?

He can’t yet, still working on that part.