Thank you for your post and we’re sorry to hear you’ve been experiencing issues.
According to our diagnostic servers, you have a current, active server installed on a newer Macbook machine with a Silicon-based (M-series) processor.
Which machine are you intending to use long-term as your server? The newer Mac will have better performance, but provided you can run MacOS 12.0 on the Mac Mini, it might function better short-term as a headless unit.
Please share a screenshot of what you’re encountering in Roon. Thank you!