Hello. Since yesterday, all my activities have been greyed-out. I have completed several math courses, but all of them are grey again. My progress is still being kept, but it is difficult for me to keep track of what I have seen.
For example, all my linear functions exercises and videos are grey, but one week ago I finished every assignment and watched every video and they were dark blue.
This is even happening to the kindergarden videos, and other assignments I've completed a year ago.
Thanks a lot
EDIT: The folks of Khan Academy fixed it. Great job, thanks a lot!