Does anyone uses an AudioPro device in a Roon environment?

For a couple of weeks now my C10mkII does not play in sync anymore with my receiver over AirPlay. Roon support is investigating, but it takes them pretty long to find the cause (or a solution). 

The situation is this: I've got several devices in and around the house. In my living room is the Pioneer receiver and within Roon it is coupled with the AudioPro C10 in the kitchen. The same music is played and perfectly in sync. Untill a few updates ago. Now there is an annoying sync gap.

If this sounds familiar, please let me know.

Thnx.