AAC Problems with Naim App

Hi,

so I played around with the Naim app and tried to play AAC files. Playing them with USB and UPnP directly at the Superuniti works fine.

Using the Naim Android App it works also fine with USB input. However using UPnP the app shows the files, but doesn't add them to the playlist. This is the case for all AAC files. SW bug of the app ?

Thx Tom