I have some issue I for sure did not have with previous versions of the app:
1/ sometimes, when playing back songs and updating the DB at the same time, the application hangs with the beach ball and no more sound. Surprisingly (or not as the interface management could be part of a different thread) I still can browse the library.
2/ Sometimes, and this does not seem to be related to a specific situation on my MAC, the sound appears to be distorted like if some of the loudspeakers were broken or badly connected. The manufacturer of my DAC told me to try another player as he heard many stories like that one with people using Audirvana.