The track function wouldn't save m progress.

I was trying the new track function, it is amazing overall, but then I went to the “my deck” page and got back in the track function on the page I was working on, and all progress is gone. I hope this problem can be fixed soon, thank you so much. Also can you guys please make it available to rewatch our previous answers when we are doing the quiz in the track function? That would make it more convenient. Again thanks a lot for all the efforts you guys made on this website! This website saved all of my midterms and exams!!