Photos do not show up on the map

System info:
Nextcloud 18.0.1 from docker container: linuxserver/nextcloud:latest
OpenMediaVault 4.1.16-2 (SMP Debian 4.18.20-2~bpo9+1 (2018-12-08) x86_64)
mariadb Ver 15.1 Distrib 10.1.41-MariaDB
PHP 7.3.14
nginx/1.16.1 (inside the container)

The issue you are facing:
No photos show up on the map, even if they have GPS info.
It worked right after install, with a few photos. Then I deleted the photos and uploaded ca. 2000 new ones, but these do not show up on the map.

When I run php occ maps:scan-photos inside the container, is says “Photo added” for all photos … but it does not change anything.

Is this the first time you’ve seen this error? (Y/N): Y

Steps to replicate it:

  1. Open Photos
  2. Select “Locations”
  3. Shows the map, but no photos

The output of your Nextcloud log in Admin > Logging: this shows up several times:

[PHP] Error: Undefined index: changelogURL at /config/www/nextcloud/core/Controller/WhatsNewController.php#91

GET /ocs/v2.php/core/whatsnew?format=json
from 172.17.0.1 by admin at 2020-02-18T19:53:00+00:00

The output of your config.php file in /path/to/nextcloud (make sure you remove any identifiable information!): this is /config/php/www2.conf:

[www]

pm = dynamic
pm.max_children = 120
pm.start_servers = 12
pm.min_spare_servers = 6
pm.max_spare_servers = 18