Duplicate URL in Username Reminder

Not sure offhand. Could you link to the other post you found which is similar? That may help us narrow things down.. or let us know which SEF plugin you're using.

Beyond that, the Username Reminder is handled by Joomla completely.. not by the SCLogin module itself. We just link to the core Joomla functionality for sending that reminder email. We'll gladly try to help however we can, but the issue is likely in your SEF extension or a Joomla configuration issue itself.

Thanks,
Alex