Long permalinks get split with multidots and get broken

Turn off all plugins, switch to TwentyTen or – even better – this theme. Then add another post with an ridiculously long title

Lopado­temacho­selacho­galeo­kranio­leipsano­drim­hypo­trimmato­silphio­parao­melito­katakechy­meno­kichl­epi­kossypho­phatto­perister­alektryon­opte­kephallio­kigklo­peleio­lagoio­siraio­baphe­tragano­pterygon

Source: Wikipedia

Then see if it works now. If it doesn’t: Re-install WP from the Admin > Dashboard/Updates page. If it does work, activate one plugin and retry, then the next one and so on. As a last step activate your theme again. This way you’re able to trac down what exact piece of software is causing the problem. Then update your question with a link to its source (if it’s freely available).

Related Posts:

  1. Pretty permalinks for search results with extra query var
  2. Does WordPress automatically do 301 redirect if I change permalink
  3. ‘post_type_link’ filter not working
  4. Broken wordpress permalinks on pages only
  5. Post being redirected to attachment post
  6. Without index.php in permalinks I get 404 across site
  7. Changing Permalinks to a Custom Permalink causes a 404 Error [no matter what I do]
  8. Change website URL without breaking links or images? WP 3.3
  9. Redirect user if it’s not logged in
  10. Random Alphanumeric Key URLs
  11. How to get this JavaScript working with get_permalink
  12. Add a css class to a taxonomy permalink
  13. Search result permalink
  14. Permalinks Structure and 404 Question
  15. Change of permalink structure – redirects in htaccess breaks the archive links
  16. Change permalinks with ACF values
  17. template_include not loading -instead goes to index.php
  18. Changing Custom Permalink with Filter
  19. WordPress installation in subfolder not working with nginx
  20. 404 with post name permalinks
  21. Should there be a trailing slash in the permalink
  22. Link to external URL
  23. Confusion about how a URL is being parsed
  24. Clean install – Changing permalinks in twentyeleven give 404
  25. Adding page links to content that automatically convert to pretty permalinks?
  26. Need Help Correct Regular Expression Redirect Code
  27. WPML get permalink to the translated post from the original post
  28. Add custom post type name in term link?
  29. issue with setting up permalink programmatically
  30. WordPress post-name permalink redirects to site.com
  31. WordPress Pages Redirecting to Root with WordPress Multisite (Sub-Directory)
  32. get_permalink() is not working after published
  33. WordPress add_rewrite_tag working for Posts, but not working for Pages
  34. Woocommerce subcategory 404
  35. WordPress always returning 404 page for a specific url
  36. WordPress can generate numeric permalinks, which then 404
  37. WordPress Automatic Update to 3.9.1 breaks Permalinks [closed]
  38. Static Text in Permalink
  39. Pre-populate Slug / Permalink with URL
  40. Permalink changes gives me 404 [closed]
  41. How do I make 301 redirection from `/%post_id%/` to `/%postname%/`?
  42. Allow Permalinks to Work with and without Hyphens
  43. WordPress permlink is not working
  44. Using one slug/post-name for multiple pages
  45. Problems with rewrite rule
  46. How to Custom Edit Post Title & Permalink Slug?
  47. Problem with parent page slug only in WordPress admin
  48. Gutenberg output URL to post from attribute with post ID
  49. Broken wordpress site, non-working links and no access to wp-admin page
  50. How can I get the list of all pages URLs including their shortlink IDs?
  51. How do I remove /wordpress/ from my permalinks?
  52. “-2” Being added to end of URL (no duplicate pages, no pages in trash)
  53. How to change custom post type, blog post and page permalink by template?
  54. Page found with “Plain” permalink but not with “Post name”
  55. Post Name Permalink setup gives 404 error inside sub-directory
  56. How to use Specific URLs for some posts
  57. Change permalinks for specific pages
  58. Page redirect to 404 when set Permalink = “Post Name”
  59. How can you create a Permalink structure on a WordPress site?
  60. How to enable http (not just https) in wordpress?
  61. How to replace permalinks
  62. Help me fix these crazy attachment page URLs (rewrite?)
  63. Unable to rename permalink
  64. How to Use metada Value in Url and is it possible? [duplicate]
  65. Custom child page permalink
  66. How to allow slash(/) on page url
  67. Safest way to create a custom permalink
  68. How do I structure my permalinks in WordPress?
  69. Parent/Child Categories Permalinks
  70. WordPress wildcard route to page
  71. An excluded ‘ghost’ page is crashing my permalink
  72. WordPress Attachment Page URL Rewrite!
  73. Customize URL for specific tags archive
  74. Yoast and permalink troubleshooting
  75. Permalink Issue | Too many redirects
  76. WordPress project redirecting to a blank index.php when i use custom templates
  77. Parent/Child Relationships with Multisites?
  78. Custom Permlinks work, regular page permalinks don’t
  79. How to redirect from old standard wordpress permalink structure to new custom one
  80. wp_dropdown_categories links 404
  81. Permalink problem ( Blog posts vs custom post types)
  82. Search and replace post URL’s on page output?
  83. Two urls for one website
  84. Added incorrect rewrite rule now getting an error
  85. Accidentally changed the permalink structure
  86. Keep wordpress from modifying my permalinks
  87. get_permalink wrongfully returns only year and month and not all the link
  88. Link to most recent child page
  89. Permalink Issue – Funny & Weird
  90. customize urls displayed by previous_post_link and next_post_link
  91. Pagination is not working, how to trace it properly?
  92. Problem when i configure permalink
  93. Files placed in directory with wordpress 404
  94. wordpress home is gone
  95. how to create several url aliases for a page
  96. Permalinks Won’t Work
  97. Post URL not working according to permalink setting
  98. Strip category base from URL?
  99. Permalinks get lost periodically
  100. Stymied by 500.5 error for WordPress on IIS 8 / Windows Server 2012