RopieeXL on pi + MinimServer trancoding?

[aliasname]

I recently swapped my Ropiee (roon endpoint software for the pi) in preference of RopieeXL which turns the pi not only acting as a roon endpoint but also dlna/upnp.

Works ok as long as I do select tracks from within Minim being of 16/44.1
Everything above results in distorted sound, likely asking for a transcoding?
But I'm lost somehow. Tried a couple of things the past days ... no way.

Setup: MinimServer on a Syno, Pi with Kali reclocker and Allo piano 2.1 DAC.

Any idea where to look next?