When you rip MQA-CD into .FLAC, .WAV or convert any MQA downloads from .FLAC to ALAC, the tag info will be lost.
Roon will read the tag and display just below the album art (after initial scanning). However, when playing back actual file, the signal path will look at the embedded markers under the noise floor for authentication.
To display the info just below the album art after initial scanning , tag the following:
’Encoder’ 'MQAEncode’
’ORIGINALSAMPLERATE’ 'xxxxxx’
Where xxxxxx is the sampling frequency in whole number, example, 44.1k = 44100 or 192k = 192000 or 352.8k = 352800