Roon skips and stops during mixed RAAT zone playback (ref#GRVTPQ)

Hello @benjamin

Did the tests as directed.

When zones were alone no problem occurred (which is normal, it never skips on isolated zones, only on groups).

On 96hkz it took a LONG while for the skip to happen. Many hours. It happened eventually, and only when I used a zone with more than 4 endpoints grouped together (all set to 96hz fixed) - I am sure if I added convolution equalizer to any of them, for example, the skips would happen much earlier

On 44hz the behavior was more or less the same. Needed a zone with more endpoints to reproduce the skips (3 or more), but it seemed to happen faster than on 96hz.

tests were run during the last 36h approximately.

Thanks!