When I click on the details for experiment 1962, it takes around 30 seconds to show me the list of 18 files in that experiment. This was so long that I gave up several times and just thought those files were missing until I started writing a support request about the missing files and when I returned to the page they were there. So, I timed it and updated this post.
All of my other experiments show their file lists in under 2 seconds, even one with 40 files. I am not sure what is causing this one to take so long, but probably worth looking at.
--Brendan