Denon SC Live buttons stop working engine 3.4

Last night in the middle of my dj set, every button near the screen stopped working except lights. I noticed also that bpm effects wasn’t available. Load option wasn’t available on the screen, only prepare. After a while load appeared but i had multiple messages that Tidal failed to connect to server, i wasn’t using it at this point. Connection restored after five minutes but i had to control everything from the screen. When the set ended i restarted my device end it came back to normal. Anyone with the same issue? What could be the source of the problem? I have to report that audio quality was terrible, all the tracks sounded like 128kbps mp3. I never had a problem before engine 3.4. Any thoughts?