After upgrading to 3.99.29 (professional/german), I can't mark messages as read in subfolders - the messagedialog for conformation appears, but without an option "include subfolders" as in older versions and only the messages in the folder itselfs get marked as read.

The only way to mark a folder WITH subfolders is, to uncheck the option in the option-cofirmation-settings - in german "Alle Nachrichten eines Unterordners als gelesen kennzeichnen" - something like "mark all messages of a subfolder as read" - but when doing this, I don't get a confirmation-dialog.

Is this a known bug - any workaround/patch available?