Glad to hear that the reinstall revolved the issue! It’s hard to say why this issue occurred, and since you have reinstalled Roon a few times, the logs would have been cleared out after each reinstall. Do let us know if this re-occurs, but there is not much that we can gather via diagnostics in this case unfortunately.
You’ll want to use the Built-in output when possible, please see this thread for a detailed explanation:
Hope this answers your questions, but if there’s anything else, just let us know!