Hi @TuliaNonTroppo / @David_Hariri,
We’re still troubleshooting this issue and we’d like to see if we can narrow this down.
We have heard from another user that this behavior might be related to the image cache on the iPhone and the length of the play queue.
Can I please ask both of you to try clearing your current play queue on the iOS device (in the Roon app) and clear the image cache under Roon Settings -> Setup -> Clear Image Cache and let me know if that stops the crashes?