Hello @Parkmad,
Since the OPPO UDP-205 does not do MQA Decoding or Rendering via it’s Roon Ready input, it is best to leave the “MQA Capabilities” setting to “No MQA Capabilities” and let Roon’s Core Decoder unfold your content so you receive the high resolution decoded stream to your device. Otherwise, the OPPO will just be receiving the 44.1/48 kHz undecoded FLAC stream which it will not perform any unfolding on.
-John