reconstruct problem

[Dr. Harry Knitter]

hello,

after having restored the mailboxes from an old System by copying the mailbox 
files to the according folders in a new system (Debian wheezy using normal 
cyrus-imapd 2.4) I ran
 
cyrreconstruct -r -f user.<mailboxname>

on every mailbox restored. The ACLs I have set new (recursively), too.

Everything works well exept one subfolder of one user which is not visible in 
the user's MUA.

The folder and its files are present in the file system. Cyradmin tells me that 
the subfolder is present, too.

Also a new cyrreconstruct on the folder concerned did not solve the problem.

What can I do to make this subfolder visible to the user?

Regards

Harry