Has anyone ever run into CF, in this case CF2023, suddenly not logging to the usual log files for typical events (errors/exceptions, writeLog calls, etc.)? It does appear Java related events are still logged to coldfusion-out/error, but it seems everything else is quiet. This is a dev install where I'm seeing this happen, latest patch applied,

yes - we've had this happen with CF2021. i haven't had time to dig into it, but one of the CF or Java updates broke certain log files so they either don't get written to, or they don't log as many events as they used to. definitely makes it harder to debug problems...

I noticed it after the latest unscoped variable patch and I think it was actually after applying the hotfix jar that added extra logging for fallout from the patch. I removed that specific jar, and the issue persists, so can’t confirm it was the culprit. But it does make debugging near impossible. Especially with our custom logs. My only fallback at the moment is going to be reinstall CF on this machine.