I am using Drupal 8, and have just moved my site to shared hosting. When I upload a standard image field on my shared hosting environment, the thumbnail image does not show up. This works perfectly on my local (WAMP) development environment.
The full sized image is in sites/default/files/2017-02/redstart.jpg and is displayed correctly.
The thumbnail address is /sites/default/files/styles/thumbnail/public/2017-02/redstart.jpg and does not display (I assume it cannot create it).
I have checked all file permissions on the server, but cannot see anything wrong (directories are 0755, files 0644) Any ideas anyone? Is there another setting somewhere that I need to update?