[wp-trac] [WordPress Trac] #36534: Media Upload Issue Since 4.5 Upgrade

[WordPress Trac]

#36534: Media Upload Issue Since 4.5 Upgrade
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 Reporter:  unicornbacon             |       Owner:  joemcgill
     Type:  defect (bug)             |      Status:  reopened
 Priority:  normal                   |   Milestone:  4.6
Component:  Media                    |     Version:  4.5
 Severity:  normal                   |  Resolution:
 Keywords:  has-patch needs-testing  |     Focuses:
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Comment (by pkilmartin):

 I don't think the issue is fully understood judging by the threads I've
 seen.  This weekend, I moved two sites to different providers, and when
 they looked ok, went ahead an upgraded WP from 4.4.3 to 4.52, along with
 all plugins.  Both sites had the image issue.

 I tried all of the various workarounds (SetEnv MAGICK_THREAD_LIMIT 1 in
 .htaccess, adding the lines to functions.php in child theme, applying the
 fixes from the patch, verifying permissions, verified PHP settings were
 above the problematic ones listed) without success.  There was a youtube
 video about changing PHP's reporting errors, which silenced the http
 errors but didn't fix the underlying problem.  Rather than update imagick
 from 6.7.2-7, i elected to downgrade WP.

 I put in place the pre-upgrade public_html directory (from prior to the
 migration) and changed db_version in wp_options from 36686 to 35700.  This
 was effective.  Hopefully all the db changes are backwards compatible
 (couldn't find documentation on the db changes).

 Of note is that the images were always uploaded, they just showed as
 broken in the media library and in the posts, when tried.

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Ticket URL: <https://core.trac.wordpress.org/ticket/36534#comment:69>
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