I have sent you an email.
Before posting, please read how to report bug or request support effectively.
Bug reports without an attached log file are usually useless.
Thanks for your report.
Can you send me an email, so I can send you back a debug version of WinSCP to track the problem? Please include link back to this topic in your email. Also note in this topic that you have sent the email. Thanks.
You will find my address (if you log in) in my forum profile.