I have a Raspberry Pi 2 with an IQ Audio Hat which I previously successfully used without problem with RoPiee & Roon up until about 6 months ago. I then used it with Logitech Media Centre without issue.
I have since returned to Roon, so I have downloaded & installed the most recent example of RoPiee XL on my Raspberry Pi.
I am getting a Zone Not Found error message when it starts up & it does not appear as an available audio device in Roon. I have enabled the RoPieee extension. It does appear as a shairport device however.
If I go to About it appears as a Roon Bridge.