Server Version#: PlexMediaServer-1.15.4.919-8e2884e4b-x86_64
Player Version#: Latest iOS version for Iphone 11
When using the iOS app, I can only see libraries shared to me by friends, and I cannot see/select any of my own. The only thing of mine that I can see is my home screen with “recent” categories.
Note: My server is on my Synology Nas, which isn’t the latest, but the lastest doesn’t work for me.
Make sure to update to the latest version of Plex for iOS released yesterday.
There had been some mix-up with the minimum required version of PMS in the previous update that is fixed with this new release.
Alternatively you’re of course happily invited to update your server. Looks like that hasn’t been updated in over 1 year (it seems your friends have newer server versions installed… that’s why those are still showing).