Error “The given object ID is not that of a menu item” on menu with 40+ items

The solution I found was to get in touch with my webhost and have them up the PHP memory limit on my account from 64MB to 128MB. The problem went away after that.

Related Posts:

  1. Error: Declaration of MyClass::start_lvl() should be compatible with that of Walker_Nav_Menu::start_lvl()
  2. Error “Trying to get property of non-object” with Custom Walker for wp_nav_menu
  3. How do I fix this error: Warning: invalid argument supplied for foreach()?
  4. How to fix strange 500 Error after Editing Menu?
  5. Getting stripos error when trying to add menu classes
  6. Cant add menu items with my theme
  7. Error: Declaration of MyClass::start_lvl() should be compatible with that of Walker_Nav_Menu::start_lvl()
  8. Error: Declaration of MyClass::start_lvl() should be compatible with that of Walker_Nav_Menu::start_lvl()
  9. Custom menu linking to page not found
  10. There is no option to click the button in header only on some pages
  11. Redirect Issue on a link from the client side
  12. Display a portion/ branch of the menu tree using wp_nav_menu()
  13. Programmatically add a Navigation menu and menu items
  14. Any docs for wp_nav_menu’s “items_wrap” argument?
  15. Customizing Only a Specific Menu using the “wp_nav_menu_items” Hook?
  16. Changing the Order of Admin Menu Sections?
  17. How make top level menu item not have link, but have sub-menus that are linked?
  18. Add ‘has_children’ class to parent li when modifying Walker_Nav_Menu
  19. Get WP Navigation Menu from REST API V2
  20. How to Hard Code Custom menu items
  21. How to add a Custom Link to a Menu with a URL that is relative to the blog URL
  22. How do I remove UL on wp_nav_menu?
  23. Retrieving a list of menu items in an array
  24. WordPress default menu in database
  25. Adding an Arbitrary Link to the Admin Menu?
  26. Dynamically exclude menu items from wp_nav_menu
  27. Add “Logout” link to navigation menu
  28. Split up wp_nav_menu with custom walker
  29. Removing container from wp_nav_menu not working
  30. Custom Nav walker display current menu item children, or siblings on no children
  31. wp_nav_menu: show menu only if one exists, otherwise show nothing
  32. Is there an easy way to replace a custom menu link with a page or post?
  33. Convert output of nav_menu items into a tree-like multidimensional array
  34. Get page IDs from nav items
  35. Add a custom walker to a menu created in a widget
  36. Using a menu walker add a custom item at the end of the menu’s items
  37. Add settings to menu items in the Customizer
  38. wp_get_nav_menu_items() not working with slug
  39. How to get current-menu-item title as variable?
  40. Add Class to Specific Link in Custom Menu
  41. Remove a menu item in menu
  42. Generate a Menu that Displays Child Pages using wp_list_pages() with the New Menu Functionality in WordPress 3.0?
  43. How do I get the name of a menu in WordPress?
  44. How to Add to Each Menu Link with link text to data-attr?
  45. How to manually specify the current active page with wp_nav_menu()
  46. How to count nav menu items?
  47. How Does The Walker Class Work?
  48. Add Javascript to WordPress Menu
  49. Add custom menu item using wp_nav_menu_items filter
  50. Filter wp_nav_menu()
  51. How to modify navigation menu of the “My Account” page in WooCommerce
  52. remove “edit your profile” from admin menu bar
  53. WordPress Settings API, Implementing Tabs On Custom Menu Page
  54. Adding line breaks to nav menu items
  55. Adding category ID or slug to WP Nav Menu
  56. add custom class to wp_nav_menu using filter hook nav_menu_css_class
  57. Custom ID for certain menu item?
  58. Does Extending Multiple Nav_Menu_Walkers Allow Nested Menus?
  59. Check if page is in a certain menu
  60. how to create a menu with all sub categories?
  61. Making breadcrumb with wp_nav_menu
  62. Does WP REST API have a built in route for calling menu?
  63. How to avoid wp_nav_menu() ID conflict?
  64. Add data-icon input to WordPress custom menu links
  65. Registering menu with ‘Automatically add new top-level pages to this menu’ selected
  66. Why do Custom Nav Menus generate so many classes on list items? Can I manage this somehow?
  67. wp_nav_menu remove class and id from li
  68. Custom search filter causes menu and query_posts problems
  69. Unregister Nav Menu from Child-Theme
  70. How does a minimal menu walker look like?
  71. Add separator to admin submenu
  72. fall back for main menu?
  73. On which hook should I be calling register_nav_menu(s)?
  74. WordPress Shortcode in Menu Item Title
  75. register_nav_menus() won’t register menus
  76. Calling the Menu Title within wp_nav_menu array function
  77. How can I create an auto-populated menu that is automatically assigned to a location?
  78. Display only page specific sub menu items using Custom Walker
  79. How do I add a search box to the nav menu?
  80. How to get IDs for objects in menu branch?
  81. New post notification in wp_nav_menu
  82. Custom Post Types posts as submenus in Nav Menu
  83. Link to Author archive from Navigation Menus in dashboard?
  84. How to stop mobile theme inheriting desktop navigation menu?
  85. Add child pages automatically to nav menu
  86. adding some custom html code to the wp_nav_menu function
  87. WordPress Menu Custom Walker Class
  88. Show just one level of child pages, wp_list_pages woe
  89. Increase search results for Admin -> Appearance -> Menus -> Search (default is 10)
  90. How to create this custom menu walker?
  91. Removing link ” from ” menu for some “links” without JS
  92. How to change order of menu items
  93. Renaming a WordPress Admin Menu
  94. Whats the difference between current_page_item and current-menu-item
  95. Using nonce in menu item
  96. Remove unusable metaboxes in nav menu management screen
  97. Menu limit, cannot add new menu items
  98. Highlight parent menu item when child is not in menu
  99. Show current navigation path from menu
  100. Deleted pages are NOT removed from custom menus?