We apologize for the instability of composr.app and appreciate your patience. We are working on the statistics addon and trying to find an optimal way to store and render data. Unfortunately, we have yet to find a solution that can handle the traffic (and therefore, tens of millions of statistical records) of composr.app. We're working hard on one.
A customer had this last week too, and I hadn't spotted why it went wrong on their site only - but it was the same scenario as yours, so I can see it is the A-Z interface injecting an extra variable and throwing off the code.
Please try the attached sources/urls.php.
FYI we will improve the usability of the A-Z thing a bit in the next patch release, as I found it a bit clunky when debugging this.
(Click to enlarge)
#1446 - Duplicate Header on Members Page
A customer had this last week too, and I hadn't spotted why it went wrong on their site only - but it was the same scenario as yours, so I can see it is the A-Z interface injecting an extra variable and throwing off the code.
Please try the attached sources/urls.php.
FYI we will improve the usability of the A-Z thing a bit in the next patch release, as I found it a bit clunky when debugging this.