[wp-trac] [WordPress Trac] #58927: Set featured image missing

[WordPress Trac]

#58927: Set featured image missing
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 Reporter:  ernasx                   |       Owner:  (none)
     Type:  defect (bug)             |      Status:  reopened
 Priority:  normal                   |   Milestone:  Awaiting Review
Component:  General                  |     Version:  6.2.2
 Severity:  major                    |  Resolution:
 Keywords:  needs-screenshots close  |     Focuses:  administration
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Comment (by doubleforte):

 FWIW, I had the same problem.

 WP is only part of my site, and I have consolidated css outside of the WP
 theme dir. Therefore there is no `style.css` file. Turns out, if you are
 missing the `style.css` file and you look at the theme's settings (not
 even changing anything, just _looking at them_!) it will blow away access
 to the featured image even though the theme files still contain
 `add_theme_support('post-thumbnails', ['post']);`. Strangely, the public-
 facing pages still respected the featured image.

 TL;DR: Make sure you have a `style.css` file in your theme dir. Even if
 the file is empty, it just needs to exist.

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Ticket URL: <https://core.trac.wordpress.org/ticket/58927#comment:6>
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