I made new tests today and noticed that while keeping the gnome extensions off, gnome-shell stabilizes completely. I think the crash was being caused by one of the extensions or the combination of them.
At the moment I'm enjoying the new ubuntu-session interface (with the gnome-shell) and I'm reviewing the need for extensions that I had installed more by inertia than by necessity.
Thanks for the tip!
I made new tests today and noticed that while keeping the gnome extensions off, gnome-shell stabilizes completely. I think the crash was being caused by one of the extensions or the combination of them.
At the moment I'm enjoying the new ubuntu-session interface (with the gnome-shell) and I'm reviewing the need for extensions that I had installed more by inertia than by necessity.
I think I can consider this Bug as solved.
Thank you very much for your attention!