[wp-trac] [WordPress Trac] #36531: Default image size medium_large is not generated

[WordPress Trac]

#36531: Default image size medium_large is not generated
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 Reporter:  Indent          |      Owner:
     Type:  defect (bug)    |     Status:  new
 Priority:  normal          |  Milestone:  Awaiting Review
Component:  Media           |    Version:  4.5
 Severity:  normal          |   Keywords:
  Focuses:  administration  |
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 With default image sizes in the media settings page, five sizes of an
 uploaded image is generated; 150px, 300px, 768px, 1024px and 1200px, using
 Twenty Sixteen. Changing one of the image sizes will cause WordPress to
 stop generating the medium_large 768px image.

 I suspect the medium_large size image is somehow set to zero in the
 database when changing media settings in WP admin, thus not generated.

 Tested with WordPress 4.4.2 and 4.5, server PHP 5.6.10 / MySQL 5.5.42, no
 plugins in the plugins folder, Twenty Sixteen, Twenty Fifteen and other
 themes as well. Language set to Norwegian in WP admin. Tested locally and
 online with Chrome version 49.0.2623.112 (64-bit) and Firefox 45.0.2.

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Ticket URL: <https://core.trac.wordpress.org/ticket/36531>
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