[wp-trac] [WordPress Trac] #54938: Error 404 in WordPress after upgrading to v5.9

[WordPress Trac]

#54938: Error 404 in WordPress after upgrading to v5.9
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 Reporter:  somos         |      Owner:  (none)
     Type:  defect (bug)  |     Status:  assigned
 Priority:  normal        |  Milestone:  Awaiting Review
Component:  General       |    Version:  5.9
 Severity:  critical      |   Keywords:  needs-patch
  Focuses:                |
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 I got message 404 in all site when I upgraded to ver5.9

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Ticket URL: <https://core.trac.wordpress.org/ticket/54938>
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