Click/Pop when using controls


my Volumio (2.296) with an ODAC (USB) very often plays a short “click/pop” when I use Play/Pause/Previous/Next or between two tracks. No matter if I play it directly from Volumio or use SpotifyConnect.
Any Ideas how to fix this? I’ve read that it may be caused by the ALSA’s automute function… any way to disable this?