How does it look like in the Web Client do your folders show up first? Does the sort selection show Sort by Folders?
You know, after my latest experiments, I've only been looking at the web client, as I assumed EMC would behave in much the same way. I should have checked. It turns out that while the web client shows all those extra folder levels, EMC does not. I also discovered a new toggle in EMC's configs labeled "Auto Enter Single Item Folders," which does away with the extra click-through even in non-mixed content folders, so that makes me a bit happier (although it would be nice if the web client had the same option).
Now, however, I'm seeing a new issue with the way EMC displays my content: See, I have my media divided up into categories (movies, cartoons, music docus, standup comedy, etc.), with multiple subfolders within each category, and in most cases, the subfolders go many layers deep. Now, EMC displays the top level libraries as always, but within each library, it simply shows all movies at once, without respect to the folder hierarchy (except, in the one library I recreated as mixed-content, the movies are sorted in alphabetical folder order - i.e., all the movies in the Disney folder, followed by all the movies in the Looney Tunes folder, et cetera. The libraries with content specified as movies seem to apply some random logic to sorting, even though they are set to sort by name.). The web client, however, displays all folders in their proper hierarchy. I do use the folder.xml at the top level of folders which have multiple movie subfolders, and so those folders appear in their proper sorting order where a sorting preference is specified in the xml data. Single-movie folders, though, do not have a folder.xml file, and if I try to add one, the web client does not honor the data therein.
Also, another new problem: I'm using the Neo theme, and in most folders I have the view set to Mercury: Poster. Now in this view all my movie poster art is stretched horizontally, so that each poster is too wide.
So, one problem tentatively solved, at least where EMC proper is concerned, and a couple more newly discovered.