Plex not downloading any metadata for movies - tv shows work fine

Hi!
Recently, metadata, posters etc. are not downloaded any more. But only for movies. TV shows are processed completely fine.
I’ve attached the logs. Inside I’ve found
2017-08-10 13:15:55,811 (70000aa89000) : ERROR (networking:219) - Error opening URL ‘http://127.0.0.1:32400/services/tmdb?uri=%2Fsearch%2Fmovie%3Fquery%3DBecks%2BLetzter%2BSommer%26year%3D%26language%3Dde%26include_adult%3Dtrue
Can you help me?

Try restarting your Plex Server and try again.

Side note: you want to include the release year of the movie into the name of the movie folder
/Movie Title (year)/

Did both things, didn’t help

Any hints? Anyone?

Yep, I got exactly the same problem. (FreeBSD 11.0-RELEASE-p1)

2017-08-18 19:11:02,146 (802018300) :  DEBUG (networking:166) - Requesting 'http://127.0.0.1:32400/services/tmdb?uri=%2Fmovie%2Ftt3501112%3Fappend_to_response%3Dreleases%2Ccredits%26language%3D'
2017-08-18 19:11:17,486 (802018300) :  ERROR (networking:219) - Error opening URL 'http://127.0.0.1:32400/services/tmdb?uri=%2Fmovie%2Ftt3501112%3Fappend_to_response%3Dreleases%2Ccredits%26language%3D'
2017-08-18 19:11:17,486 (802018300) :  INFO (__init__:1472) - Error fetching JSON from The Movie Database: http://127.0.0.1:32400/services/tmdb?uri=%2Fmovie%2Ftt3501112%3Fappend_to_response%3Dreleases%2Ccredits%26language%3D

Running a CURL on the same URL just gives “no match:”

curl http://127.0.0.1:32400/services/tmdb?uri=%2Fmovie%2Ftt3501112%3Fappend_to_response%3Dreleases%2Ccredits%26language%3D
curl: No match.

This problem appears to have happened within the last couple of versions. Any assistance on this would be greatly appreciated.

Update; I found a thread here where the user found that the IPv6 his broadband modem automatically assigned him on the WAN actually caused imdb/moviedb etc. to return empty queries. I decided to check it out, and disabled IPv6 on the WAN side of my cable modem. I also completely deleted -everything- of Plex on my FreeBSD server (including db and config), and rebuilt everything from scratch. I can’t say which of these actually helped, but my movie media agents are now correctly querying again.

I ran into the same problem with 1.8.0 and 1.8.1. Any new movies I added to my library had no metadata. Based on @Baudchaser’s comment, I disabled IPv6 on the Windows box where my PMS server runs and suddenly it all works.

Still a bug in PMS, but that’s the work-around for now.

FWIW, this is still an issue as of PMS 1.11.1.4730

It seems like the android app uses an old version of okhttp and can’t handle nginx+http2. Deactivating http2 in my nginx proxy fixed this issue