This static problem may not be related to Roon. It's often a problem withe the DAC not syncing the right bit rate. For instance, playing 96/24 and then switching to 44/16. I've had some luck fixing this a couple of different ways. You can upsample everything to the same bit rate, for instance, 96/24. Then your DAC never has to switch. It's not a bad approach as some DACs simply perform better at higher sample rates.
The other approach is to go into the advanced (I think) settings of your DAC and increase the inter song delay. Also worth checking you have the correct maximum sample rates.