[wp-trac] [WordPress Trac] #14134: Menus item are limited to 16 item and will not save more than that

[WordPress Trac]

#14134: Menus item are limited to 16 item and will not save more than that
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 Reporter:  jaanfx                               |       Owner:
     Type:  defect (bug)                         |      Status:  reviewing
 Priority:  high                                 |   Milestone:  Future
Component:  Menus                                |  Release
 Severity:  major                                |     Version:  3.0
 Keywords:  has-patch needs-refresh needs-       |  Resolution:
  testing needs-unit-tests                       |     Focuses:
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Changes (by joalisch):

 * keywords:  has-patch needs-refresh needs-testing => has-patch needs-
     refresh needs-testing needs-unit-tests


Comment:

 **[spoiler alert: this is just another report with more details for this
 issue, not a solution or fix]**

 Hello everybody,

 I ran into this bug a couple of days ago, and after all I tried so far to
 fix it / workaround it I am feeling really helpless.

 Here is my situation:

 I am running on WP 4.1 "Dinah", a multisite (network) with a handful of
 pages - all of them quite small in scale (from the perspective of an end
 user, the overall scale / numbers of my menus should BY NO MEANS be a
 problem). Themes include "decode theme", "minimal", of course
 "twentyfifteen" and others. More on themes below...

 {{{
 suhosin.post.max_vars = 64000
 suhosin.request.max_vars = 64000
 }}}

 is what I put into .htaccess

 - 64000 is the number, that I got emailed from my provider support guys as
 their standard setting on all of their servers - so I am using this number
 now.
 - I tried some other numbers suggested elsewhere, but it did not seem to
 make a difference at all.

 but adding those numbers to .htaccess within /htdocs/wordpress had NO
 effect.
 --> wrong line in file?
 --> wrong location for ".htaccess"?
 --> wrong configuration of .htaccess elsewehere?

 - in addition I created a php.ini from scratch in /htdocs/wordpress with
 two lines reading:

 {{{
 max_input_vars = 64000
 php_value max_input_vars = 64000
 }}}

 - but this did not change the situation either.

 Status quo:

 - ALL of my plugins are deactivated (throughout the multisite network)
 - I could reproduce the bug using DIFFERENT super admin USERS in the
 network
 - I switched themes to twelvefifteen (same issue)
 - I overwrote the filesystem from a fresh WP 4.1 download and all of my
 contents from a backup I did BEFORE the problem occured
 - I configured WP to access a sql database version PRIOR to the first
 appearance of the problem

 **The behaviour of appearance-->menus (...) is still as follows:**

 "[mysite]/nav-menus.php"

 - i can **NOT** add new items (pages/posts...) to ANY menu, the interface
 does not show the single items (the "boxes"), nor is any new item saved.

 - As soon as I choose "Add to menu", all I get is a sentence saying

 "Drag each item into the order you prefer. Click the arrow on the right of
 the item to reveal additional configuration options."

 - there are NO ITEMS to drag around (under "menu structure")

 - when I hit "Save Menu", nothing changes.

 - creating a new menu, OR deleting existing menus is possible though, but
 can not commit edits

 - top level pages are added automatically (if I choose this option) but I
 can NOT manipulate this manually, such as sort order, etc. The order seems
 to be sort of random

 - the location of the menu is saved, but not reliably: through the theme
 customizer ("navigation" panel), it will preview / save the correct
 location of an existing menu, but I cannot save this information through
 the location-tab in the menu

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Ticket URL: <https://core.trac.wordpress.org/ticket/14134#comment:156>
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