[wp-trac] [WordPress Trac] #48600: Multisite rewrite rules are lost after core network upgrade

[WordPress Trac]

#48600: Multisite rewrite rules are lost after core network upgrade
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 Reporter:  litemotiv          |       Owner:  (none)
     Type:  defect (bug)       |      Status:  new
 Priority:  normal             |   Milestone:  Awaiting Review
Component:  Upgrade/Install    |     Version:  5.3
 Severity:  major              |  Resolution:
 Keywords:  reporter-feedback  |     Focuses:  multisite
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Changes (by jeremyfelt):

 * keywords:   => reporter-feedback


Comment:

 Hi @litemotiv, thanks for the report.

 A few questions for you:

 * Can you confirm that both of these installs were an upgrade from
 WordPress 5.2 to 5.3?
 * Do both multisites have the same plugins installed? I hesitate to ask
 for a list, but it may be helpful.
 * Are you using an object cache plugin on each?
 * Was the upgrade performed through the network admin, through WP-CLI, or
 through another method?
 * Did the option for `rewrite_rules` change to the default or was it still
 configured as before, just not working?

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Ticket URL: <https://core.trac.wordpress.org/ticket/48600#comment:1>
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