Not sure if you guys are aware of this but you can move your plex meta data to another spot. I created a separate share folder and named it Plex then I set it to cache only. then I pointed the /config ==> /mnt/user/Plex/ works perfectly.
It worked beautifully. you do need to reinstall the app and delete all the data from appdata!
Also you have to add the container port info as well if that wasnt clear enough 6666:6666
Thanks Quiks!
I wonder if that works with all apps like Sabnzbd. some issue with that one but no worries for me since I could change one.