[imp] Trash and Sent Folder Links Missing from Sidebar since Upgrade from 4.1.4

[Harakiri]

Hello,

since upgrade from imp 4.1.4 to the latest 4.3 the nav bar doesnt display the sent and trash folder anymore.

My server file:

$servers['imap'] = array(
    'name' => 'IMAP Server',
    'server' => 'localhost',
    'hordeauth' => false,
    'protocol' => 'imap/notls',
    'port' => 143,
    'maildomain' => '',
    'smtphost' => 'localhost',
    'smtpport' => 20024,
    'realm' => '',
    'preferred' => '',
);


Im using Courier IMAP server, manually selecting a folder with mailbox.php?mailbox=INBOX.Sent or mailbox.php?mailbox=INBOX.Trash still works tho - so it seems that the new IMP is unable to figure out that these folders exists.

How can i fix this? I looked at lib/IMAP/Tree.php but im not sure.

Thanks