Last modified: 2014-07-31 09:02:29 UTC
Here is an example: https://tools.wmflabs.org/quentinv57-tools/tools/sulinfo.php?username=محمد The username consists of four Unicode letters (arabic in this case). SUL info is unable to retrieve it correctly, and therefore is unable to show proper results.
Same problem here, cyrillic username in my case.