I wanted to show 50 items per page in the Unanswered Questions page (default: 15).
After clicking the corresponding button, no questions are shown (blank left column). Same with the button for showing 30 questions. This works on the other three sites. (See Edit 2. Now it's reproducible on all sites)
It's not a caching problem.
I'm using Firefox 3.0 and Vista 64bit
Edit
Ian Elliott's link is working:
https://superuser.com/unanswered/tagged?page=1&tab=votes&pagesize=50
That's the link generated on my request:
https://superuser.com/unanswered/tagged?page=12&tab=votes&pagesize=50
There is page=12, not page=1 for some reason.
Edit 2
Now I understand the bug:
With show=15 I was on the 12th page (go to page x on the lower left). Here I changed the list to 50 items per page. Because a 12th page does not exits when 50 items are listed, I get no questions listed at all.