This is fixed in Opus 9.0.0.1:[ul][li]...[/li]
[li] Double-clicks in List/Thumbs/Tiles mode no longer enter inline rename if the launched program did not take the focus[/li]
[li]...[/li][/ul]Full list of changes here: [Directory Opus 9.0.0.1)
Indeed. Got the new build a few hours ago, and it works great now. 