I have -- quite frankly -- had it.
Grading via rubrics has to be improved. I just lost 1 hour of work because I inadvertently hit something that "advanced' me to the next student.
I don't know what and I, quite frankly, don't care how or why this happened.
Just please fix. Things need to be honestly auto-saved. There is no excuse for how this is currently implemented.
You might have hit a keyboard shortcut in the SpeedGrader. You can disable them by going to your profile setting (E.g. youracademy.com/profile/settings) by clicking on "Account -> Settings" then scroll down to the bottom of that page.
You can post this idea (auto-save) to the Idea Conversations forum: https://community.canvaslms.com/t5/Idea-Conversations/idb-p/ideas