For very long URLs, the code was using a shortened URL as the actual HREF link, so, when you clicked on it, it went to a shortened URL with ... at the end.

To fix this:

open libs/link.php
change 'url_short' to 'url' at lines 232 and 234.

I assume 'url_short' is used when the URL is displayed, but I'm not sure where this is used...