Sent mails not visible when moved to a user created folder

Hello,
I am using em client version 1.
When I move a sent mail item to a user created folder it becomes invisible.
I can see it only if I remember contents of sent mail like “Mail.ID” when searched from search window.
This causes a lot of inconvenience as only received mails are seen in that folder.
Please help resolve this issue as soon as possible.
Regards,
Narendra