I found another strange behavior. If I type “絃舞I” in the search field, then the correct tracks could be found. There should be something wrong with the search string manipulation or the search algorithm in roon.
I am facing this as well. When I search for 孙凰 in roon I get no results, however if I search directly in the Qobuz app I can find them.
Additionally it would be a great feature to be able to group artist names. For example that same artist also appears in the Qobuz library as Huang Sun.
On the other hand, it seams different algorithms are used in local library search and Tidal search. Even I search for 茉莉, tracks named 茉莉花 in Tidal are found.