Unable to load assignment in Browser

I did several courses machine learning and doing the 2nd course of deep learning.
This happens to me first time that after I click on Work in Browser.


It stuck in “preparing your lab 50%” forever, and finally after few minutes it failed.
image

I tried clear coockies and use other browser, i.e. chrome. But the problem is still there.

Please follow this post.

it’s the same with me

This is a known issue. Please see the banner post for updates.
No additional reports are needed at this time.
Closing the thread.