Current playback settings.
Digital Output (Chord Async) [WASAPI] > Chord Qutest > 4xDSD in DoP format (Output Encoding)
This output encoding setting is probably not what you want. Presumably you want to play DSD content as DSD and PCM content as PCM. That output encoding setting will do two things:
1. Convert all PCM to 4xDSD
2. Convert all DSD below 4x to PCM, then convert that PCM to 4xDSD
So most of your content will be artificially encoded to DSD and your real DSD will be "broken" by converting to PCM first and then back to DSD.
What you probably want to do is use the bitstreaming options to bitstream all DSD, then turn output encoding OFF. That way PCM will go to your DAC as PCM and DSD will go to your DAC as DSD. Which is probably what you want and is probably what will yield the best sound quality.
...and might also stop your popping problems to boot.
Brian.