I would recommend disabling the “Empty trash automatically after every scan” first and also the partial scan setting secondly. Disabling the automatic trash should prevent the reported issue from happening or at the very least hold the item in trash while you make the change over. Could you disable the trash setting and follow your normal media upgrade flow and see if the issue continues?
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Apologies, I missed this response.
I disabled the automatic trash emptying, and the partial scan settings.
For the test, I used my existing 1080p version of Ant-Man (2015). I linked another 4K MKV to a new 4K directory: Movies - 4K\Ant-Man (2015)\Ant-Man (2015) - BluRay.4K.etc.etc.mkv
I thought with the partial scan disabled I would have to manually scan my Movies library, but I noticed that my Ant-Man title was already showing the 4K version.
I then deleted the Ant-Man (2015) folder from my Movies - 4K folder.
Once again, I saw the title change from 2 versions to just the 1080p version, without me having to trigger any library scan.
However, now in the main Movies Recommended view, I do NOT see Ant-Man as “Recently Added.” This achieves the desired behavior.
Is there an issue with not emptying the trash automatically? I don’t see any option for manually emptying the trash. Will the trash “fill up” eventually?
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There is a concern that the trash can automatically “empty” things before registering other changes. It really shouldn’t impact what you’re doing since you aren’t removing titles, just versions, so my guess is turning off the partial scan is really what helped here; you could test it by turning empty automatically back on.
Lots of folks run with automatic empty trash turned off so it’s easier to recover from accidental deletions and such. It doesn’t really “fill up” as much as you’ll just have those trash icons and “unavailable” listings - though since you’re not actually removing titles, just versions, you wouldn’t really see that either. It’d just be extra cruft in the DB. More info about it: https://support.plex.tv/articles/200289326-emptying-library-trash/
You definitely want it off if you’re moving files around between locations (less of an issue if you’re copying).
With partial scan off, you likely still have automatically scan for changes still enabled which is why it’s still processing titles automatically. I do it that way and my experience is basically the same even after turning partial scan off; after having some of my own hiccups Atomatth recommended turning that setting off. Since the autoscan is still enabled it’ll still pick up changes automatically. I think the partial scan setting was supposed to help reduce some scanning cpu cycles.
With a few topics having suggestions to turn off partial scan setting, and it helped with your issue here, it might be a little buggy.
