[Dovecot] shared folder files not displaying in thunderbird

[Eric Broch]

Can anyone help me figure out why email in a sub-folder (created using
Thunderbird) of a dovecot namespace will not display in Thunderbird?

...

Hello,

I have dovecot installed with the configuration below.
One of the subfolders created (using the email client) under the
'/home/vpopmail/domains/mydomain.com/shared/projects' share no longer
(it used to) displays the files located in it. There are about 150
folders under the '/home/vpopmail/domains/mydomain.com/shared/projects'
share all of which display the files located in them, the one mentioned
used to display the contents but no longer does.

What would be the reason that one folder would no longer display
existing files in the email client (Thunderbird) and the other folders
would? And, how do I fix this?

I've already tried unsubscribing and resubscribing the folder. This did
not work.

Would it now be simply a matter of unsubscribing the folder, deleting
the dovecot files, and resubscribing to the folder?

Eric

# 2.0.11: /etc/dovecot/dovecot.conf
# OS: Linux 2.6.18-238.19.1.el5 i686 CentOS release 5.7 (Final)
auth_cache_size = 32 M
auth_mechanisms = plain login digest-md5 cram-md5
auth_username_format = %Lu
disable_plaintext_auth = no
first_valid_uid = 89
log_path = /var/log/dovecot.log
login_greeting = Dovecot toaster ready.
namespace {
  inbox = yes
  location =
  prefix = INBOX.
  separator = .
  type = private
}
namespace {
  location = maildir:/home/vpopmail/domains/mydomain.com/shared/projects
  prefix = projects.
  separator = .
  type = public
}
passdb {
  args = cache_key=%u webmail=127.0.0.1
  driver = vpopmail
}
plugin/quota = maildir
protocols = imap
ssl_cert = </var/qmail/control/servercert.pem
ssl_key = </var/qmail/control/servercert.pem
userdb {
  args = cache_key=%u quota_template=quota_rule=*:backend=%q
  driver = vpopmail
}
protocol imap {
  imap_client_workarounds = delay-newmail
}