I had a similar experience. In my case I coul not manage to make the VU meter and Analyzer work properly. The VU meter is kind of flickering-tossing-wandering and the Analyzer is kind of hidding bellow the bottom and displaying only top/max values of spectrum. My stup is Pi 3B, HiFi berry dac+, 7” rpi official touch, joggler skin for 7”. Any ideas how to fix this?