[wp-trac] [WordPress Trac] #38269: WordPress 4.6.1 editor causes loss of content

[WordPress Trac]

#38269: WordPress 4.6.1 editor causes loss of content
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 Reporter:  rsspanic      |      Owner:
     Type:  defect (bug)  |     Status:  new
 Priority:  normal        |  Milestone:  Awaiting Review
Component:  Editor        |    Version:  4.6.1
 Severity:  normal        |   Keywords:
  Focuses:  ui, template  |
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 Hi, since the upgrade to 4.6 (or perhaps it is 4.6.1) our editorial staff
 have been experiencing strange issues – sometimes they write posts in text
 mode, and the editing screen opens up the post split into two vertical
 windows (like trying to edit in two windows in MS Word) without them
 wanting this; each with its own save button and if they save the top half,
 the bottom of the post gets erased. Another strange thing that happens
 occasionally is that all the links in the post get pushed to its bottom.

 What’s going on and what can we do? our editors already had to spend hours
 of work recreating content because of this.

 Our site does have dozens of other plugins and we have a custom theme
 based on Designwall DW Focus. But those troubles started only after
 updating to 4.6. Before that we’ve been working for years with essentially
 the same setup and never had these problems. I'm sure they are not
 connected to plugins because I have not installe a new plugin in months.
 We only did a few updates to existing plugins in the last few weeks.

 Oue editor has been updated to version 1.2.6.3 and we also have W3 Total
 cache 0.9.5.1. It has been reporting this error in the last month or so-
 see below - but the problem started way after this error message.

 many thanks for any help.

 W3 Total Cache error: It appears Page Cache URL rewriting is not working.
 Please verify that the server configuration allows .htaccess
 Unfortunately disk enhanced page caching will not function without custom
 rewrite rules. Please ask your server administrator for assistance. Also
 refer to the install page for the rules for your server.

 Many thanks...

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Ticket URL: <https://core.trac.wordpress.org/ticket/38269>
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