Fatal Error using Metabox Group addon with Elementor

So, here is how this bugs can be reproduced:

Plugin used: Elementor, Metabox AIO, Groups, cloneable group fields.

I created a post with multiple custom fields with 2-3 group fields and using cloneable/repeatable fields under those groups.

Created Meta skin using Elementor and designed a custom post template.

Everything was working well and I created 3-4 posts using this and it all worked well. Few days later, I had to add one more new sub_field in one of the existing group fields. I create it and then included in it in the previously created meta fields.

As I saved it. Now, I wasn't able to open any of the custom posts or meta skin templates.. it all gave shows 'Fatal Error' message and I got an email like this:

Error Details
=============
An error of type E_ERROR was caused in line 288 of the file /var/www/domain.com/htdocs/wp-content/plugins/meta-box-aio/vendor/meta-box/mb-elementor-integrator/src/GroupField.php. Error message: Uncaught TypeError: array_column(): Argument #1 ($array) must be of type array, null given in /var/www/domain.com/htdocs/wp-content/plugins/meta-box-aio/vendor/meta-box/mb-elementor-integrator/src/GroupField.php:288
Stack trace:
#0 /var/www/domain.com/htdocs/wp-content/plugins/meta-box-aio/vendor/meta-box/mb-elementor-integrator/src/GroupField.php(288): array_column()
#1 /var/www/domain.com/htdocs/wp-content/plugins/meta-box-aio/vendor/meta-box/mb-elementor-integrator/src/Traits/Post.php(92): MBEI\GroupField->get_value_dynamic_tag()
#2 /var/www/domain.com/htdocs/wp-content/plugins/meta-box-aio/vendor/meta-box/mb-elementor-integrator/src/Traits/Fields/Text.php(16): MBEI\Tags\Post\Text->the_value()
#3 /var/www/domain.com/htdocs/wp-content/plugins/elementor/core/dynamic-tags/tag.php(35): MBEI\Tags\Post\Text->render()
#4 /var/www/domain.com/htdocs/wp-content/plugins/elementor/core/dynamic-tags/manager.php(216): Elementor\Core\DynamicTags\Tag->get_content()
#5 [internal function]: Elementor\Core\DynamicTags\Manager->get_tag_data_content()
#6 /var/www/domain.com/htdocs/wp-content/plugins/elementor/core/dynamic-tags/manager.php(109): call_user_func_array()
#7 /var/www/domain.com/htdocs/wp-content/plugins/elementor/core/dynamic-tags/manager.php(74): Elementor\Core\DynamicTags\Manager->parse_tag_text()
#8 [internal function]: Elementor\Core\DynamicTags\Manager->Elementor\Core\DynamicTags\{closure}()
#9 /var/www/domain.com/htdocs/wp-content/plugins/elementor/core/dynamic-tags/manager.php(73): preg_replace_callback()
#10 /var/www/domain.com/htdocs/wp-content/plugins/elementor/includes/controls/base-data.php(91): Elementor\Core\DynamicTags\Manager->parse_tags_text()
#11 /var/www/domain.com/htdocs/wp-content/plugins/elementor/includes/base/controls-stack.php(1276): Elementor\Base_Data_Control->parse_tags()
#12 /var/www/domain.com/htdocs/wp-content/plugins/elementor/includes/base/controls-stack.php(1127): Elementor\Controls_Stack->parse_dynamic_settings()
#13 /var/www/domain.com/htdocs/wp-content/plugins/elementor/includes/base/controls-stack.php(1212): Elementor\Controls_Stack->get_parsed_dynamic_settings()
#14 /var/www/domain.com/htdocs/wp-content/plugins/elementor/includes/widgets/heading.php(305): Elementor\Controls_Stack->get_settings_for_display()
#15 /var/www/domain.com/htdocs/wp-content/plugins/elementor/includes/base/controls-stack.php(2268): Elementor\Widget_Heading->render()
#16 /var/www/domain.com/htdocs/wp-content/plugins/elementor/includes/base/widget-base.php(609): Elementor\Controls_Stack->render_by_mode()
#17 /var/www/domain.com/htdocs/wp-content/plugins/elementor/includes/base/widget-base.php(733): Elementor\Widget_Base->render_content()
#18 /var/www/domain.com/htdocs/wp-content/plugins/elementor/includes/base/element-base.php(536): Elementor\Widget_Base->get_raw_data()
#19 /var/www/domain.com/htdocs/wp-content/plugins/elementor/includes/base/element-base.php(536): Elementor\Element_Base->get_raw_data()
#20 /var/www/domain.com/htdocs/wp-content/plugins/elementor/includes/base/element-base.php(536): Elementor\Element_Base->get_raw_data()
#21 /var/www/domain.com/htdocs/wp-content/plugins/elementor/includes/base/element-base.php(536): Elementor\Element_Base->get_raw_data()
#22 /var/www/domain.com/htdocs/wp-content/plugins/elementor/core/base/document.php(977): Elementor\Element_Base->get_raw_data()
#23 /var/www/domain.com/htdocs/wp-content/plugins/elementor-pro/modules/theme-builder/documents/theme-document.php(444): Elementor\Core\Base\Document->get_elements_raw_data()
#24 /var/www/domain.com/htdocs/wp-content/plugins/elementor/core/base/document.php(643): ElementorPro\Modules\ThemeBuilder\Documents\Theme_Document->get_elements_raw_data()
#25 /var/www/domain.com/htdocs/wp-content/plugins/elementor/modules/library/documents/library-document.php(66): Elementor\Core\Base\Document->get_initial_config()
#26 /var/www/domain.com/htdocs/wp-content/plugins/elementor-pro/modules/theme-builder/documents/theme-document.php(666): Elementor\Modules\Library\Documents\Library_Document->get_initial_config()
#27 /var/www/domain.com/htdocs/wp-content/plugins/elementor/includes/base/controls-stack.php(1021): ElementorPro\Modules\ThemeBuilder\Documents\Theme_Document->get_initial_config()
#28 /var/www/domain.com/htdocs/wp-content/plugins/elementor/core/editor/config-providers/editor-common-client-env.php(34): Elementor\Controls_Stack->get_config()
#29 /var/www/domain.com/htdocs/wp-content/plugins/elementor/core/editor/config-providers/editor-common-configs.php(169): Elementor\Core\Editor\Config_Providers\Editor_Common_Client_Env::get_client_env()
#30 /var/www/domain.com/htdocs/wp-content/plugins/elementor/core/editor/config-providers/editor-v1-config-provider.php(46): Elementor\Core\Editor\Config_Providers\Editor_Common_Configs::get_client_env()
#31 /var/www/domain.com/htdocs/wp-content/plugins/elementor/core/editor/editor-loader.php(57): Elementor\Core\Editor\Config_Providers\Editor_V1_Config_Provider->get_client_env()
#32 /var/www/domain.com/htdocs/wp-content/plugins/elementor/core/editor/editor.php(357): Elementor\Core\Editor\Editor_Loader->print_client_env()
#33 /var/www/domain.com/htdocs/wp-includes/class-wp-hook.php(308): Elementor\Core\Editor\Editor->enqueue_scripts()
#34 /var/www/domain.com/htdocs/wp-includes/class-wp-hook.php(332): WP_Hook->apply_filters()
#35 /var/www/domain.com/htdocs/wp-includes/plugin.php(517): WP_Hook->do_action()
#36 /var/www/domain.com/htdocs/wp-includes/script-loader.php(2194): do_action()
#37 /var/www/domain.com/htdocs/wp-includes/class-wp-hook.php(308): wp_enqueue_scripts()
#38 /var/www/domain.com/htdocs/wp-includes/class-wp-hook.php(332): WP_Hook->apply_filters()
#39 /var/www/domain.com/htdocs/wp-includes/plugin.php(517): WP_Hook->do_action()
#40 /var/www/domain.com/htdocs/wp-includes/general-template.php(3049): do_action()
#41 /var/www/domain.com/htdocs/wp-content/plugins/elementor/includes/editor-templates/editor-wrapper.php(31): wp_head()
#42 /var/www/domain.com/htdocs/wp-content/plugins/elementor/core/editor/editor-loader.php(135): include('...')
#43 /var/www/domain.com/htdocs/wp-content/plugins/elementor/core/editor/editor.php(162): Elementor\Core\Editor\Editor_Loader->print_root_template()
#44 /var/www/domain.com/htdocs/wp-includes/class-wp-hook.php(308): Elementor\Core\Editor\Editor->init()
#45 /var/www/domain.com/htdocs/wp-includes/class-wp-hook.php(332): WP_Hook->apply_filters()
#46 /var/www/domain.com/htdocs/wp-includes/plugin.php(517): WP_Hook->do_action()
#47 /var/www/domain.com/htdocs/wp-admin/admin.php(419): do_action()
#48 /var/www/domain.com/htdocs/wp-admin/post.php(12): require_once('...')
#49 {main}
 thrown

It appears that since a new sub_field is created and in the old posts, this new sub_field remains empty. This somehow ignite this bug. However, this bug doesn't go away even if I fill this new sub field for all the old posts. It goes away only when I create a new meta_skin and delete old one.

Not sure why is this happening. Please see if you can help me with this to resolve any future issues. For now, I have created new meta skins and it's working now.

Thank you.