Manual Registration

Can you explain what you mean by the 'manual registration process'? Is that if the user is registering using Joomla normally to create an account?

If it's during login, can you let me know if it's only with the SCLogin module or if the same behavior happens with the normal Joomla login module (mod_login)?

Some options I can suggest now without knowing all the details are:
* In the SCLogin module parameters, set the "Caching" option to disabled
* Disable caching in the Joomla Global Configuration area

Try those to see if that helps, otherwise, please help us to understand the issue further.

Thanks,
Alex