Plex Not Updating

Plex not updating libraryPlex not updating version

Plex Updates Folder

NotPlex

Plex Not Updating Library

Of course, Plex knows that a good portion of their users are not the type to pay for digital content. A secondary point is collecting information and telemetry. Plex is attractive to video on-demand platforms because it can offer a solid base of users with some (a lot?) of data. Disabling 'Enable Plex Media Server' and 'Enable Automatic Plex New Version Update' in the router GUI (thus revealing the manual 'update' option for Plex in the router GUI) Enabling telnet and logging into the router.

Plex Not Updating Metadata

Not

Plex Server Will Not Update

So I currently have PMS running 1.15.2.793 and Plex apparently released an update to 1.15.3.876. For some reason, I can't update to it.
According to my FreeNAS jail, all of my packages are up to date, but Plex isn't installed (because I use the plugin rather than install via jail.)
I ran this script in the past (https://www.ceos3c.com/freenas/manually-update-plex-freenas/), but now it isn't working. What do I do?
Also, can someone explain why FreeNAS has two plugins of the same software? Apparently there's Plex Media Server and Plex Media Server (PlexPass). What's the difference and which do I need?