[wp-trac] [WordPress Trac] #52111: Classic Editor - TinyMCE Visual Page editor not working correctly after update to version 5.6

[WordPress Trac]

#52111: Classic Editor - TinyMCE Visual Page editor not working correctly after
update to version 5.6
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 Reporter:  spikeuk1      |       Owner:  (none)
     Type:  defect (bug)  |      Status:  new
 Priority:  normal        |   Milestone:  5.6.1
Component:  Editor        |     Version:  5.6
 Severity:  normal        |  Resolution:
 Keywords:                |     Focuses:
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Comment (by spikeuk1):

 Replying to [ticket:52111 spikeuk1]:
 > I have encountered a problem following updating to version 5.6 (from
 5.5.3–en_GB). When I (or other users) try to edit an existing page (or
 unpublished draft) the editing box in Visual mode is empty.
 > If you click on the Text tab the content is displayed. Clicking back to
 Visual mode and the content is now visible.
 > However, if you edit the content in the Visible tab and save (or
 preview) the edit is lost.
 > (There are several reports on https://wordpress.org/support/ of other
 people experiencing the same issue)

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Ticket URL: <https://core.trac.wordpress.org/ticket/52111#comment:3>
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