Sorry for that 120 days late post, but found a solution. Seems that WASAPI really hates CAD intervention on your media player. I changed from WASAPI to Directsound again with 48kHz/24bit. This only happens in Desktop software that were downloaded by users. while on Windows Store, the WASAPI output didn't care about CAD at all, I have no explanation on this, probably the WS version isn't update yet on the latest final version of 3.2.