Currently threaded and grouped views are mutually exclusive. It would be amazing to enable threads (and upcoming conversations) for grouped view as well. Thanks.
They might be able to fix this when they fix the global mail database. That’s why conversations don’t work properly; there is no global mail database for the entire application. It’s only per Folder
@simpletech I don't think that's the problem. Currently you can already open a true multifolder threaded view - just use Ctrl+Shift+O keyboard shortcut. It's just not integrated properly into regular message cards and message view panel.