The Save Button for Google AI Studio is gone and has been replaced by some sort of “automatic” save function, but that starts OK but locks up after about 15 minutes. The result is that if I quit all the additional prompting and chat that I have done since is lost. OK have a “automatic” save, but don’t take away the Manual Save. With that I can at least have a local copy, and can retrieve my chat threads again. BTW I am using Firefox.