Currently I'm facing the problem of buffering. When I opened a course day 1 was so good but when I processed then the day 2 was not loading

Problem description:
Loading problem

Expected behavior:
When I opened the 2nd day of the course then it should be opened and run smoothly

Actual behavior:
Instead of opening it is taking much time it is now 2-3 hours but it is not opening

Steps to reproduce:

Bug appears at this link:


We are sorry about this! We are aware of this and are working on a fix. All information on the incident can be found here: