audio v18 leia

[size=medium was using v17.1 in my home cinema environment reasonably successful, then loaded, v18 Leia nightly build. Video fine but there was a difference with the audio. Firstly with music there was no stereo upscaling , my blue ray iOS files previously in V17.1 decoded 7.1 through my main amp but with V18 decoding was a bit suspect with the amp not recognising the stream format. In short the audio coding in V18 has changed,
This is in a windows 10 OS which works Ok using Cyberlink software. This is an observation not a bug complaint, will stick with Kodi but might switch back if future builds do not sort out audio streaming routines.
Any comments?
Gerry.[/size]