[wp-trac] [WordPress Trac] #38014: blank /wp-admin/index.php after upgrade from 4.5.x, missing Save Settings (button) in Settings > General

[WordPress Trac]

#38014: blank /wp-admin/index.php after upgrade from 4.5.x, missing Save Settings
(button) in Settings > General
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 Reporter:  scaturan      |      Owner:
     Type:  defect (bug)  |     Status:  new
 Priority:  normal        |  Milestone:  Awaiting Review
Component:  General       |    Version:  4.6
 Severity:  normal        |   Keywords:
  Focuses:                |
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 Platform:

 Apache/2.4.23 (FreeBSD)
 PHP/5.6.25
 mySQL 5.5.51

 Like all my WordPress installations over the years, my codebase is
 unmodified with no plugins present or active. I don't use 3rd party
 plugins either, just whatever stock theme comes with latest.zip

 Also, I perform upgrades manually.

 --

 Shortly after upgrading from 4.5.x (fresh install, just copied over
 previous .htaccess and wp-config.php files) - /wp-admin/index.php renders
 blank. I can login just fine (but get redirected to a blank page), and can
 also access /wp-admin/edit.php to modify posts or pages without any
 issues.

 a 200 HTTP status code is sent by Apache when I open /wp-admin/index.php

 Also, Settings > General > Save Settings (button) is not visible unless
 language-related code is removed. The same button is visible in all other
 areas like Writing, Discussion, etc..


 On a fresh install of 4.5, I don't see this particular issue, so clearly,
 there's a code change somewhere.


 Please advise, thank you.

 Steve

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Ticket URL: <https://core.trac.wordpress.org/ticket/38014>
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