Pops and crackles on BS Pulse Soundbar 2

I have problems with my Pulse Soundbar 2. When playing music through Roon it pops and crackles now and then. Yesterday it played fine for about two hours and then it popped every other second for a few songs. Tv sound is never an issue. What could it be?

No problems with BLuetooth. This morning was a bit worse than regular with Roon through Bluesound. No One else with similar problems?

I should also mention that the Pulse soundbar is one of three zones and the only one that acts like this.