[wp-trac] [WordPress Trac] #46552: Page Preview not working

[WordPress Trac]

#46552: Page Preview not working
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 Reporter:  sumitbagthariya16  |       Owner:  (none)
     Type:  defect (bug)       |      Status:  new
 Priority:  normal             |   Milestone:  Awaiting Review
Component:  Editor             |     Version:  5.1
 Severity:  normal             |  Resolution:
 Keywords:  reporter-feedback  |     Focuses:
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Comment (by earnjam):

 This sounds like: https://github.com/WordPress/gutenberg/issues/12617

 That is a confirmed bug where when the block editor has meta boxes, it
 won't display the preview on the first preview window load. If you wait a
 few seconds for an autosave to fire in the background, and then click
 refresh, it may work.

 @sumitbagthariya16 can you confirm whether this is happening with no
 plugins active and the default theme?

 If it happens with no plugins active and the default theme (i.e. no
 metaboxes), then we have an open issue to try to track that situation
 here: https://github.com/WordPress/gutenberg/issues/13232
 Some users have reported previews not working even when no metaboxes are
 loaded, but we haven't been able to confirm that yet.

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Ticket URL: <https://core.trac.wordpress.org/ticket/46552#comment:3>
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