Sync'ed content not showing up under "Local and Synced"

Prefix: Sync was the main reason I signed up for a Plex Pass, so hopefully someone can help me get this working.

I’m an a Google Pixel 2, currently using the beta Plex app (Though I initially experienced this on the current/stable app, and signed up for the beta app hoping it would fix this).

When I sync content to my phone, the sync appears to happen successfully. It will take up space on my phone. When I go to the “Synced items” menu, I will see the content as being synced to my phone. But when I switch from my server to “Local and Synced Content”, nothing appears.

Screenshot 1: https://i.imgur.com/YfgSNKt.png
Screenshot 2: https://i.imgur.com/v4HXTH2.png
Screenshot 3: https://i.imgur.com/WpNplGX.png

Things I have tried so far:

Deleting and re-syncing
Force stopping the app, opening, deleting, re-syncing
Force stopping the app, clearing all app data (including cache), opening, signing back in, re-syncing
Uninstalling the app, re-installing the app, opening, singing back in, re-syncing
Initiating sync from web client instead of my phone
Switching from the stable app to the beta app
Uninstalling the app, removing the device from my account, installing the app, skipping sign in, renaming my device from “Pixel 2” to “Pixel”, singing back in, re-syncing
Praying to Chtulu

Please, someone, help me out here. Like I said, I paid for a Plex Pass so I can sync content. If I’m unable to watch my synced content, I don’t have a reason to continue to pay for a Plex Pass.

Man if you prayed to Chtulu and its still not working you might be out of luck…

I have a Nexus 6P on Oreo 8.1 with the non beta plex app and I use the Sync all the time so hopefully we can get this working for you.

So lets start with something small so it doesn’t take as long… do you have any music so you can try and sync like 1 track to the phone and see what you get?

So, I ended up getting my solution here: https://forums.plex.tv/discussion/comment/1605448/#Comment_1605448

Long story short: My username had non-english characters in it. After changing it, sync now works!