Not all my files appear in my library despite proper naming

[ChuckPa]

After migrating from DSM 6 and the Plex shared folder
to DSM 7 and the PlexMediaServer shared folder,

There are a lot of other changes.

1. User Plex isn’t used any more
2. DSM 7 required we switch username to PlexMediaServer (the package name)
3. This means you must go and apply the permissions to all your media files.

• Set for the shared folder
• “Apply to this folder, sub folders , and files” — IS REQUIRED

Here is the How To

Synology FAQ - Questions, Answers, and How-To's

FAQ 19: Setting permissions to allow Plex access to media files Before beginning, it’s important to remember one key point; Plex doesn’t have any special privileges on Synology except for being able to access the Video Transcoding acceleration hardware. It cannot read any of your files unless you expressly grant permission. This is a fundamental principle of Linux (which Synology uses for DSM) Because of how Synology grants permission, access to files is broken into two different …

Here is what it should look like:

You can remove user Plex from the Control Panel - Users app.
It’s abandoned and no longer needed.