Unable to use HTTPS

I just upgraded to 4.0 and noticed it now supports HTTPS.

Unfortunately, I'm not able to get this to work properly. Is there some type of trick to getting this to work.
It seems fairly straight forward. I enter in the host and path, while also specifying the username and password in my remote browser.

I provide this information and initiate the connection, but nothing appears to happen. All that shows in the log is the version string: SmartFTP v4.0.1137.0

If I close the remote browser down, I get an error saying: unspecified error

Would love to get this working.

Thanks,

HTTPS is not advertised and is not available yet.