❌ Post Navigation widget not compatible with cache object (wp-memcached)

[mbautista]

Prerequisites

• I have searched for similar issues in open and closed tickets and cannot find a duplicate.
• I have troubleshooted my issue, and it still exists against the latest stable version of Elementor.

Description

Hello,

When using the Post navigation Elementor widget with object-cache.php from wp-memcached the Prev/Next links are not correct.

We use an action to display posts by menu_order, maybe the bug is related but not sure :

add_action( 'pre_get_posts', 'ircf_pre_get_posts');
function ircf_pre_get_posts($query){
    if ( is_admin() || ! $query->is_main_query() ) return;
    if ( is_tax('categorie_oeuvre') || is_post_type_archive('oeuvre') || $query->get('post_type') == 'oeuvre' ){
        $query->set( 'order', 'ASC' );
        $query->set( 'orderby', 'menu_order' );
    }
}

For now we had to disable de object caching on the impacted website.

Thank you very much :)
Mathieu.

Steps to reproduce

1. Install and enable https://github.com/Automattic/wp-memcached (copy object-cache.php to wp-content)
2. Create an Elementor single template with the Post Navigation Widget
3. Create many posts
4. Navigate to the front-end post pages : the Prev/Next links do not match the post order, sometimes the Prev/Next links point to the post itself

Expected behavior

The prev/next links should be displayed in the correct order.

Isolating the problem

• This bug happens when only the Elementor (and Elementor Pro) plugins are active.
• This bug happens with the Hello Elementor theme active.
• I can reproduce this bug consistently by following the steps I described above.

Elementor System Info

== Server Environment ==
Linux Debian 11 / php 8.1
== Wordpress Environment ==
Wordpress 4.5
== Theme ==
Hello Elementor
== Active Plugins ==
Elementor
Elementor Pro
Wp Memcached (copied object-cache.php to wp-content)

Agreement

• I agree that my issue may be closed without action if it doesn't meet all the requirements.

[nicholaszein]

Hello @mbautista.

We appreciate your involvement in our community. For efficient troubleshooting, please remember to include the
FULL, and essential System Info with each issue reported. We'll need it to help you effectively.

⚠️ As a gentle reminder, issues without it may need to be closed without troubleshooting. Providing this information upfront aligns with our guidelines, saves time, and ensures swift resolution. Thank you for understanding.

[mbautista]

Hello @nicholaszein
You will find below the System info from the impacted website.

== Server Environment ==
	Operating System: Linux
	Software: nginx/1.22.0
	MySQL version: Debian 11 v10.5.23
	PHP Version: 8.1.28
	PHP Memory Limit: 1024M
	PHP Max Input Vars: 5000
	PHP Max Post Size: 128M
	GD Installed: Yes
	ZIP Installed: Yes
	Write Permissions: All right
	Elementor Library: Connected

== WordPress Environment ==
	Version: 6.4.4
	Site URL: https://frankgodille.fr
	Home URL: https://frankgodille.fr
	WP Multisite: Yes
	Max Upload Size: 100 Mo
	Memory limit: 64M
	Max Memory limit: 1024M
	Permalink Structure: /%year%/%monthnum%/%day%/%postname%/
	Language: fr_FR
	Timezone: Europe/Paris
	Admin Email: technique@ircf.fr
	Debug Mode: Active

== Theme ==
	Name: Frank Godille Elementor
	Version: 1.0
	Author: IRCF
	Child Theme: Yes
	Parent Theme Name: Hello Elementor
	Parent Theme Version: 3.0.1
	Parent Theme Author: Elementor Team

== User ==
	Role: administrator
	WP Profile lang: fr-FR
	User Agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:126.0) Gecko/20100101 Firefox/126.0

== Active Plugins ==
	Cookie Notice & Compliance for GDPR / CCPA
		Version: 2.4.15
		Author: Hu-manity.co

	Dynamic.ooo - Dynamic Content for Elementor
		Version: 2.9.1
		Author: Dynamic.ooo

	Elementor
		Version: 3.20.0
		Author: Elementor.com

	Elementor Pro
		Version: 3.13.1
		Author: Elementor.com

	Enable Media Replace
		Version: 4.1.5
		Author: ShortPixel

	Essential Addons for Elementor
		Version: 5.9.15
		Author: WPDeveloper

	Essential Addons for Elementor - Pro
		Version: 5.4.10
		Author: WPDeveloper

	Pods - Custom Content Types and Fields
		Version: 3.1.4
		Author: Pods Framework Team

	Query Monitor
		Version: 3.15.0
		Author: John Blackbourn

	Resize At Upload Plus
		Version: 1.3
		Author: Daniel Mores, A. Huizinga

	Simple Custom Post Order
		Version: 2.5.7
		Author: Colorlib

	Yoast SEO
		Version: 22.2
		Author: Team Yoast


== Network Plugins ==
	Blog Copier
		Version: 1.0.7
		Author: Modern Tribe, Inc.

	Breadcrumb NavXT
		Version: 7.3.0
		Author: John Havlik

	Classic Editor
		Version: 1.6.3
		Author: WordPress Contributors

	Connect Matomo
		Version: 1.0.30
		Author: André Bräkling

	Disable new user email notifications
		Version: 1.0
		Author: 

	MU Migration
		Version: 0.3.1
		Author: Nícholas André, 10up

	Network Plugin Auditor
		Version: 1.10.1
		Author: Katherine Semel

	Nginx Helper
		Version: 2.2.4
		Author: rtCamp

	Prevent Password Reset
		Version: 0.2.0
		Author: Justin Tadlock

	ProActiv Theme
		Version: 0.1
		Author: IRCF

	Unfiltered MU
		Version: 1.3.1
		Author: Automattic

	Wordfence Security
		Version: 7.11.5
		Author: Wordfence

	WP fail2ban
		Version: 5.2.2.1
		Author: Charles Lecklider

	WP Super Cache
		Version: 1.12.0
		Author: Automattic


== Fonctionnalités ==
	Custom Fonts: 0
	Custom Icons: 0

== Intégrations ==
	
	recaptcha_v3: Actif


== Expériences d’Elementor ==
	Amélioration du chargement des ressources: Actif par défaut
	Optimisation du chargement du CSS: Inactif par défaut
	Polices d’icônes « inline »: Inactif par défaut
	Points d’arrêt personnalisés supplémentaires: Actif par défaut
	admin_menu_rearrangement: Inactif par défaut
	Conteneur Flexbox: Inactif par défaut
	Mettre à niveau la bibliothèque Swiper: Actif par défaut
	Conteneur grille: Inactif par défaut
	Par défaut vers le Nouveau constructeur de thème: Inactif
	En-tête et pied de page du thème Hello: Inactif par défaut
	Barre supérieure de l’éditeur: Inactif par défaut
	Chargement optimisé de Gutenberg: Actif par défaut
	Construire avec l’IA: Actif par défaut
	Page d’atterrissage: Actif par défaut
	Éléments imbriqués: Inactif par défaut
	Chargement différé des images d’arrière-plan: Inactif par défaut
	Optimiser le chargement des images: Actif par défaut
	Transitions des pages: Actif par défaut
	Notes: Actif par défaut
	Boucle: Actif par défaut
	Envois de formulaire: Actif par défaut
	Accroche de défilement: Actif par défaut
	Menu: Inactif par défaut


== Journal ==
	
JS: showing 7 of 7JS: 2022-11-07 10:18:45 [error X 27][http://frankgodille.proactiv.ircf.fr/wp-content/plugins/elementor/assets/lib/font-awesome/js/v4-shims.min.js?ver=5.3.2:1:1] redeclaration of let l 
JS: 2022-11-07 15:05:18 [error X 1][http://frankgodille.proactiv.ircf.fr/wp-content/plugins/elementor/assets/js/editor.min.js?ver=3.7.6:3:1060718] $ is null 
JS: 2022-11-07 15:28:13 [error X 10][http://frankgodille.proactiv.ircf.fr/wp-content/plugins/elementor/assets/js/editor.min.js?ver=3.7.6:3:767534] this.store.find(...) is undefined 
JS: 2022-11-07 15:30:25 [error X 28][http://frankgodille.proactiv.ircf.fr/wp-content/plugins/elementor/assets/js/editor-modules.min.js?ver=3.7.6:2:14029] An invalid argument supplied as multiple control value [array (
  'category' => 'InvalidElementData',
  'tag' => 'Element `undefined` got as `eael_flip_carousel_slide` value. Expected array or object.',
)]
JS: 2022-11-14 13:40:09 [error X 2][http://frankgodille.proactiv.ircf.fr/?elementor_library=template-01&elementor-preview=681&ver=1668433207 line 220 > eval:2:30926] elementor.settings.page is undefined 
JS: 2022-12-14 15:09:27 [error X 1][https://frankgodille.fr/wp-includes/js/jquery/jquery.min.js?ver=3.6.1:1:51816] a is undefined 
JS: 2022-12-27 07:56:04 [error X 1][https://frankgodille.fr/wp-content/plugins/elementor/assets/js/new-template.min.js?ver=3.8.1:2:2869] elementor_new_template_form_controls is not defined 

PHP: showing 4 of 4PHP: 2022-11-07 15:44:47 [notice X 6][/var/www/clients/client1/web188/web/wp-content/plugins/elementor-pro/modules/dynamic-tags/pods/tags/pods-text.php::20] Trying to access array offset on value of type bool [array (
  'trace' => '
#0: Elementor\Core\Logger\Manager -> shutdown()
',
)]
PHP: 2022-11-14 11:46:32 [notice X 33][/var/www/clients/client1/web188/web/wp-content/plugins/elementor/includes/conditions.php::87] Undefined index: motion_fx_transform_x_anchor_point [array (
  'trace' => '
#0: Elementor\Core\Logger\Manager -> shutdown()
',
)]
PHP: 2023-06-25 09:50:49 [notice X 16][/var/www/clients/client1/web188/web/wp-content/plugins/elementor/includes/controls/groups/base.php::497] str_replace(): Passing null to parameter #2 ($replace) of type array|string is deprecated [array (
  'trace' => '
#0: Elementor\Core\Logger\Manager -> shutdown()
',
)]
PHP: 2023-12-04 14:28:05 [notice X 43301][/var/www/clients/client1/web188/web/wp-content/plugins/elementor/core/experiments/manager.php::166] version_compare(): Passing null to parameter #2 ($version2) of type string is deprecated [array (
  'trace' => '
#0: Elementor\Core\Logger\Manager -> shutdown()
',
)]

Log: showing 20 of 312023-03-06 12:21:11 [info] Elementor data updater process has been queued. [array (
  'plugin' => 'Elementor',
  'from' => '3.8.1',
  'to' => '3.11.2',
)]
2023-03-06 13:46:05 [info] elementor-pro::elementor_pro_updater Started 
2023-03-06 13:46:05 [info] Elementor Pro/Upgrades - _on_each_version Start  
2023-03-06 13:46:05 [info] Elementor Pro/Upgrades - _on_each_version Finished 
2023-03-06 13:46:05 [info] Elementor data updater process has been completed. [array (
  'plugin' => 'Elementor Pro',
  'from' => '3.7.6',
  'to' => '3.11.3',
)]
2023-03-06 13:46:05 [info] Elementor data updater process has been queued. [array (
  'plugin' => 'Elementor Pro',
  'from' => '3.7.6',
  'to' => '3.11.3',
)]
2023-03-06 13:46:06 [info] Elementor data updater process has been queued. [array (
  'plugin' => 'Elementor Pro',
  'from' => '3.7.6',
  'to' => '3.11.3',
)]
2023-03-28 15:20:51 [info] dynamic-content-for-elementor::dce_updater Started 
2023-03-28 15:20:51 [info] Dynamic.ooo - Dynamic Content for Elementor/Upgrades - _v_2_8_0_conditional_validation_join_lines Start  
2023-03-28 15:20:51 [info] Dynamic.ooo - Dynamic Content for Elementor/Upgrades - _v_2_8_0_conditional_validation_join_lines Finished 
2023-03-28 15:20:51 [info] Elementor data updater process has been completed. [array (
  'plugin' => 'Dynamic.ooo - Dynamic Content for Elementor',
  'from' => '2.7.9',
  'to' => '2.9.1',
)]
2023-03-28 15:20:51 [info] Elementor data updater process has been queued. [array (
  'plugin' => 'Dynamic.ooo - Dynamic Content for Elementor',
  'from' => '2.7.9',
  'to' => '2.9.1',
)]
2024-03-22 10:31:09 [info] elementor::elementor_updater Started 
2024-03-22 10:31:09 [info] Elementor/Upgrades - _on_each_version Start  
2024-03-22 10:31:09 [info] Elementor/Upgrades - _on_each_version Finished 
2024-03-22 10:31:09 [info] Elementor data updater process has been completed. [array (
  'plugin' => 'Elementor',
  'from' => '3.11.2',
  'to' => '3.20.0',
)]
2024-03-22 10:31:11 [info] elementor-pro::elementor_pro_updater Started 
2024-03-22 10:31:11 [info] Elementor Pro/Upgrades - _on_each_version Start  
2024-03-22 10:31:11 [info] Elementor Pro/Upgrades - _on_each_version Finished 
2024-03-22 10:31:11 [info] Elementor data updater process has been completed. [array (
  'plugin' => 'Elementor Pro',
  'from' => '3.11.3',
  'to' => '3.13.1',
)]



== Elementor - Compatibility Tag ==
	
	Dynamic.ooo - Dynamic Content for Elementor: Compatibilité non spécifiée
	Elementor Pro: Compatibilité non spécifiée
	Essential Addons for Elementor: Compatibilité non spécifiée
	Essential Addons for Elementor - Pro: Compatibilité non spécifiée

== Elementor Pro - Compatibility Tag ==