I finally fixed my local network iOS app library access issue that started when the “big update” happened earlier this year. I host my plex server in docker. I had used a local network name in my ADVERTISE_IP env var
ADVERTISE_IP=http://server.myhousedomain:32400/
That had been working for years. The new app perhaps uses different name resolution settings, maybe avoiding my local network DNS. Changing to an IP address fixed it for me.
ADVERTISE_IP=http://192.168.1.10:32400/
