[wp-trac] [WordPress Trac] #52790: Reusable blocks disappeared

[WordPress Trac]

#52790: Reusable blocks disappeared
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 Reporter:  jordiparera        |       Owner:  (none)
     Type:  defect (bug)       |      Status:  reopened
 Priority:  normal             |   Milestone:  5.8.1
Component:  Editor             |     Version:  5.7
 Severity:  critical           |  Resolution:
 Keywords:  reporter-feedback  |     Focuses:
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Comment (by mwcs):

 I'm a Trac novice, so please correct me if I should open a new ticket -
 because I'm using WP 5.8

 My Reusable Blocks are also disappearing as described in this thread. i.e.
 the block title remains, but the content is empty.

 When I go to 'Manage Reusable Blocks' I can use Revision History > to
 restore the content from autosave, but then a warning notice is displayed
 in the yellow box:

 ''"The backup of this post in your browser is different from the version
 below.
 [ restore the backup ]"''

 If I click the "Restore the Backup" button in the warning notice, the
 content disappears again.

 The blocks appear to break when the content is edited within the post or
 page. Not all blocks break when doing this, but I have seen the following
 block types break numerous times: Social Icons (WP core) and Jetpack
 Appointment Form. These are fairly "vanilla blocks" with only slight
 modifications, i.e. the phone number field is removed.

 If I edit the block within a page or post and then save that post... at
 some point after that, the reusable block content is blank.

 ----
 OPTIMISATION

 I'm not sure if this is related, but I am using Jetpack and also the
 Litespeed Cache plugin.

 ''However'', all caching and optimisation in Jetpack and Litespeed LSCache
 is currently ''disabled''.

 The only optimisation that ''is'' enabled in Litespeed is:

 Editor Heartbeat TTL = 30s
 Back-end Heartbeat TTL = 60s
 CSS Minify,
 Lazy Load,
 Load Google Fonts Asynchronously

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Ticket URL: <https://core.trac.wordpress.org/ticket/52790#comment:53>
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