I have upgraded everything to Roon 1.8.
Works fine.
But when in the Roon app on the iPad I tap on the Settings main menu item the app crashes immediately.
Roon iPad app version 1.8.00748
iOS 14.4
iPad mini 5th generation
I’m the opposite. On my phone, open Settings > About = instacrash. Restarting the app results in repeated crashes of the app even without interaction. Restart of the phone fixes it. I was unable to reproduce the issue on my iPad!