Custom Post Type not using correct page template

The problem is caused by flush_rewrite_rules(). Remove that line and the issue should be resolved.

If you call that function on every page load it can cause issues like this with permalinks. This function should only be run once after your theme or plugin is activated (but not on the activation hook, since that’s too early). This is because permalinks are persistent and should only be flushed if something has changed.

It’s often easier to just manually flush the permalinks by visiting Settings > Permalinks.

Related Posts:

  1. Taxonomy page returns 404 page not found
  2. Prepend meta_value to permalink of post
  3. Removing CPT slug from URL results in 404 error for archive page
  4. Getting Post ID from slug during init
  5. Interesting Custom Post Type Slug with Taxonomy and Custom Field
  6. Rewrite rules for custom post type slug
  7. How to remove slugs from multiple custom post types
  8. Change custom post type slug from plugin options
  9. Rewrite post type slug only for child theme
  10. Custom rewrite url category
  11. Index page with the same id as the slug
  12. How can I make the slug of the taxonomy also the slug of the custom post
  13. Programmatically rewriting slug through functions.php but returns 404
  14. Including taxonomy term before post type breaks top level pages
  15. WordPress Custom Post Type – Rewrite Query
  16. Custom Post Type Advanced Slug
  17. Custom Post Types and Removing Slugs – should we do it?
  18. Custom rewrite rule based on other custom post type title
  19. Add %post_id% to slug of custom post type and prevent the “unique slug” thing that WP does?
  20. Two CPT: one is using part of the custom rewrite slug from the other
  21. Custom Post Type Rewrite Rule
  22. Custom Post Type with multiple Custom Taxonomies / Hide Taxonomy Slug from URL
  23. Custom post type Premalinks main page and details page
  24. Custom slugs with dates & IDs on Custom Post Type
  25. Add post id to url instead of WordPress default -2 suffix
  26. Custom post type yearly/ monthly archive permalinks
  27. Meta_Query as a way how to setup CPT permalinks – is it a good thing?
  28. How can I rewrite URLs to pass taxonomy and post type values to the query?
  29. Using Custom Fields in Custom Post Type URL
  30. Removing base slug from hierarchical custom post type
  31. Rewriting ‘rewrite’ slug for custom post type used by plugin
  32. Adding meta values to permalink
  33. WordPress custom taxonomy URL rewrite on spelling errors
  34. How can i avoid the permalink start with ‘blog’ while using the custom post type?
  35. Custom Posttype Inheritance (and url structure)
  36. Adding %author% in custom post type URL structure?
  37. Post slug changed using code doesn’t reflect on editor when post is published
  38. Defining a default page for custom post type
  39. Pass parameter to custom post type single while keeping clean url
  40. Reslug a Custom Post Type
  41. Many to Many Taxonomies or rewrite rules?
  42. remove post-name from title in custom post type
  43. Rewrite custom post & taxonomy to share same URL path
  44. how to use two permalinks for one custom post type
  45. Custom post type’s slug gets wrong when adding a custom meta box
  46. Adding a date archive to Custom Post Type
  47. Bulk 301 redirect for custom post type
  48. Custom Permalink Tag breaks Pagination
  49. Custom Permalink with Dynamic Taxonomy for Custom Post Type – Works, but breaks other permalinks
  50. Custom Post Type and Custom Taxonomy Permalinks
  51. Pagination problem
  52. Custom post type with slug for plural (archive) and for single
  53. Custom Post Type Post have a Child `Page` Post Type Post
  54. remove permalink “front part” for custom post type
  55. Query var removed after rewrite
  56. Change Permalink Structure for Tag.php template
  57. Custom post types archive redirect
  58. Remove post type slug of all post types from permalinks
  59. Add archive slug to default post post type
  60. Custom Post type and permalink settings
  61. Permalink for a custom post type isn’t working and I don’t know why
  62. Assign same parrent Page to pages AND custom post types
  63. Versioned Custom Post Type (Not the same as revisions)
  64. Custom post Type, child of a Page?
  65. Hide or disallow default custom post type url?
  66. Multiple (two) category postings on the same page.
  67. Custom taxonomy returns 404
  68. Pretty URLs and custom post types
  69. Specific routing for CPT
  70. Lost of query parameter when using permalink
  71. Slug for custom post type
  72. Custom Rewrite Rule for Custom Post Type with URL Param
  73. WordPress custom slug rewrite
  74. After creating Custom post type by user delete old one
  75. Dynamic CPT permalink structure based on ACF field value
  76. Rewrite rules for custom post type
  77. Custom taxonomy and post type rewrite rules
  78. Custom Post Type and Taxonomy Rewrite Error
  79. custom posts permalinks url rewriting
  80. Url Rewriting a dynamic wordpress page with parameters
  81. I want to rewrite the URL of a specific post with a specific custom field to easily analyze in Google Analytics
  82. How can I write slugs / permalinks as: custom post type -> custom taxonomy and custom post type -> custom taxonomy (one CPT and many taxo)?
  83. Display CPT taxonomies as an archive page
  84. Redirect Custom Post Type from Child Taxonomies
  85. Custom Post Type duplicating slug for new posts
  86. WordPress page not showing up – replaced with last 10 posts?
  87. Custom post type rewrite and wp_pagenavi interfering with each other
  88. Generate slug and meta data if meta field is empty
  89. redirect old post type url to new structure url
  90. Why is a custom post type’s URL “/?cposts=name-of-the-post” but default post’s URL is “/?p=ID”?
  91. Ideal top-level slug methods
  92. How can you preserve URLs when moving posts to a custom post type?
  93. Custom Post Type Base URL
  94. Custom Post Type and single-posttype template
  95. Create page using same slug as custom post type
  96. Same slug for Custom Taxonomy archive and CPT archive – Rewrite rule not working
  97. How to rewrite custom slugs that follow my rules
  98. What is the best way to relate different custom post types?
  99. Allow child pages with the same base as the CPT slug
  100. Custom Post Type slug has the same Redirection entry