Roon Transport device in use

[Axel]

I've seen it come up heaps of times but only for a second and then the music just starts playing. So to me it looks like a bug that can sometimes prevent playing and sometimes just work. What causes the difference I don't know. I do have 16Gb of memory in my Mac mini, which is a lot more than you should need but it might just be the reason mine never actually gets hung up.

You could be right about the memory, @Pim.
My Mac has 32 GB of memory and never suffers from the Roon Transport Device error.