[wp-trac] [WordPress Trac] #55580: Featured image in Cover block missing from published page

[WordPress Trac]

#55580: Featured image in Cover block missing from published page
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 Reporter:  ironprogrammer               |       Owner:  (none)
     Type:  defect (bug)                 |      Status:  new
 Priority:  high                         |   Milestone:  6.0
Component:  Editor                       |     Version:  trunk
 Severity:  normal                       |  Resolution:
 Keywords:  needs-patch has-screenshots  |     Focuses:
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Changes (by costdev):

 * priority:  normal => high
 * milestone:  Awaiting Review => 6.0


Comment:

 == Test Report

 === Environment
 * Server: Apache (Linux)
 * WordPress: 6.0-beta1-53167-src
 * Browser: Chrome 100.0.4896.88
 * OS: Windows 10
 * Theme: Twenty Twenty-One
 * Plugins: None activated

 === Steps
 1. Create a new post.
 2. In the **Settings** sidebar (opened via the "cog" icon), select the
 "Post" tab.
 3. Expand the "Featured image" section, and click "Set featured image".
 4. Select or upload an image, and click the **Set featured image** button
 when done.
 5. At the block inserter, add a new Cover block (e.g. by typing the
 `/cover` shortcut).
 6. In the block toolbar, select the "Use featured image" icon (adjacent to
 "Add Media").
 7. Observe that the featured image selected in Step 4 is displayed in the
 block. ✅
 8. Publish the post.
 9. Open the post on the frontend of the site, **and scroll past the
 template's default featured image, if present** (see note below).
 10. Observe that the Cover block background is gray, and does not display
 the featured image. ❌

 === Results
 1. Issue reproduced.

 === Notes
 - Milestoning for `6.0`.

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Ticket URL: <https://core.trac.wordpress.org/ticket/55580#comment:3>
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