The scanner will correctly locate the two film editions but will not find any of the extras like in the Featurettes folder. If I temporarily switch to remove the editions and just put a single /Media/Movies/Dune (1984)/Dune (1984).m4v then the scanner does find the extras.
I noticed in another thread that there were folks mentioning you can’t use folder-based metadata like /Featurettes along with filename-based (like Destination Dune-featurettes.m4v) but I don’t see any docs that allow me to use folders for editions so if that’s the conflict, I don’t know how to resolve it. It’s definitely something to do with having that {edition} markup in the filename.
IIRC the support docs refer to placing editions in their own folder.
While you probably try to associate the same featurette with both editions, that’s not how editions work… Plex treats them as separate library items and extras can only be associated to one item. In this case, instead of the featurette showing up with both editions, Plex considers there’s no corresponding extras.
Keep the editions in separate folders
Store your extras with one of them
If it’s important to you to have the same extras with both editions, consider creating a hard link „copy“ and place that with the other edition
Tip! : If you’re making use of multiple editions for movies, you need to make sure that each edition is stored in its own named movie directory. The local trailers and extras can then be placed inside that specific edition folder, like normal. See information on naming movie files/folders.
I see on the multiple editions page the primary example shows all the editions in one folder. There’s a separate section about using editions and versions at the same time which does show things in folders named like /Media/Movies/Dune (1984) {edition-Extended}/Dune (1984) {edition-Extended}.m4v. I’m unclear if this will work: