FPBX and language Files

Till Freepbx 2.4 it works with language seetings in sip_custom.conf. I had in /var/www/fpbx/modules/pbdirectory/sounds a subdirctory: “de” There were the german language files - and it was working. Since 2.5 it is immartial, what I say, I can say in the extensions “language = de” but in pbdirectory it works only in english - in other applications it’s works in german. It’s a BuG in pbdirectory??
wbg frank