After the last Blusound update to V3 on my Blusound Flex it fails to sync with my Ropiee DAC and there is a delay between the outputs. I contacted Blusound support but they were less than helpful. My Flex updated to V4 software yesterday but the problem has not been solved. I have a workaround which is to restart the group with the blue play button a second time but I have to listen to the delayed output first. I bring it to your attention as it would seem that the Bluesound software is no longer Roon Ready.