Views / Panels / Panelizer / Ctools latest -dev's, this shouldn't be affected by panelizer though.

I have a view with a context pane, which I am using to display the view in a panel page. The first time the page is viewed after clearning the cache the view is displayed correctly. After the first page view I only get non-views panes (or nothing if there are none).

I have attempted to trace this for the view header and it looks like views_content_context_get_output() attaches the view object as $context->output, which then gets returned to views_content_views_header_content_type_render(). At this point it tries to assign $output['header'] to $block->content, but that array element doesn't exist - header is at $output['view']->header, and its neither markup or a renderable array (as far as i can tell).

Strangely, if I add an exposed filter or sort to the view, everything renders correctly. I've managed to replicate the issue using bartik instead of a custom theme, so that rules out a lot of errors.

Here's a backtrace if it helps.

|  1 0  views_content_views_header_content_type_render() /home/sam/www/gateway/docroot/sites/all/modules/contrib/ctools/views_content/plugins/content_types/views_header.inc:32
|  2 1  ctools_content_render() /home/sam/www/gateway/docroot/sites/all/modules/contrib/ctools/includes/content.inc:280
|  3 2  panels_renderer_standard->render_pane_content() /home/sam/www/gateway/docroot/sites/all/modules/contrib/panels/plugins/display_renderers/panels_renderer_standard.class.php:553
|  4 3  panels_renderer_standard->render_pane() /home/sam/www/gateway/docroot/sites/all/modules/contrib/panels/plugins/display_renderers/panels_renderer_standard.class.php:484
|  5 4  panels_renderer_standard->render_panes() /home/sam/www/gateway/docroot/sites/all/modules/contrib/panels/plugins/display_renderers/panels_renderer_standard.class.php:465
|  6 5  panels_renderer_standard->render_layout() /home/sam/www/gateway/docroot/sites/all/modules/contrib/panels/plugins/display_renderers/panels_renderer_standard.class.php:390
|  7 6  panels_renderer_standard->render() /home/sam/www/gateway/docroot/sites/all/modules/contrib/panels/plugins/display_renderers/panels_renderer_standard.class.php:358
|  8 7  panels_display->render() /home/sam/www/gateway/docroot/sites/all/modules/contrib/panels/panels.module:752
|  9 8  panels_render_display() /home/sam/www/gateway/docroot/sites/all/modules/contrib/panels/panels.module:1084
| 10 9  panels_panel_context_render() /home/sam/www/gateway/docroot/sites/all/modules/contrib/panels/plugins/task_handlers/panel_context.inc:328
| 11 10 ctools_context_handler_render_handler() /home/sam/www/gateway/docroot/sites/all/modules/contrib/ctools/includes/context-task-handler.inc:121
| 12 11 ctools_context_handler_render() /home/sam/www/gateway/docroot/sites/all/modules/contrib/ctools/includes/context-task-handler.inc:44
| 13 12 page_manager_page_execute() /home/sam/www/gateway/docroot/sites/all/modules/contrib/ctools/page_manager/plugins/tasks/page.inc:322
| 14 13 call_user_func_array() /home/sam/www/gateway/docroot/includes/menu.inc:0
| 15 14 menu_execute_active_handler() /home/sam/www/gateway/docroot/includes/menu.inc:517
| 16 15 {main}          /home/sam/www/gateway/docroot/index.php:21

Cheers,
Sam

Comments

Is the view and context pane you have to replicate this relatively simple? If so, exports might help a lot in tracing this one down.

Quick response :)

Export below:

$view = new view();
$view->name = 'trending';
$view->description = '';
$view->tag = 'default';
$view->base_table = 'node';
$view->human_name = 'Trending';
$view->core = 7;
$view->api_version = '3.0';
$view->disabled = FALSE; /* Edit this to true to make a default view disabled initially */
/* Display: Master */
$handler = $view->new_display('default', 'Master', 'default');
$handler->display->display_options['title'] = 'Trending Content';
$handler->display->display_options['use_more'] = TRUE;
$handler->display->display_options['use_more_always'] = FALSE;
$handler->display->display_options['use_more_text'] = 'More trending content';
$handler->display->display_options['access']['type'] = 'perm';
$handler->display->display_options['cache']['type'] = 'none';
$handler->display->display_options['query']['type'] = 'views_query';
$handler->display->display_options['exposed_form']['type'] = 'basic';
$handler->display->display_options['pager']['type'] = 'full';
$handler->display->display_options['pager']['options']['items_per_page'] = '10';
$handler->display->display_options['style_plugin'] = 'grid';
$handler->display->display_options['style_options']['columns'] = '2';
$handler->display->display_options['row_plugin'] = 'node';
$handler->display->display_options['row_options']['view_mode'] = 'teaser_half';
$handler->display->display_options['row_options']['links'] = FALSE;
/* No results behavior: Global: Text area */
$handler->display->display_options['empty']['area']['id'] = 'area';
$handler->display->display_options['empty']['area']['table'] = 'views';
$handler->display->display_options['empty']['area']['field'] = 'area';
$handler->display->display_options['empty']['area']['empty'] = TRUE;
$handler->display->display_options['empty']['area']['content'] = 'There is no trending content';
$handler->display->display_options['empty']['area']['format'] = 'filtered_html';
/* Field: Content: Title */
$handler->display->display_options['fields']['title']['id'] = 'title';
$handler->display->display_options['fields']['title']['table'] = 'node';
$handler->display->display_options['fields']['title']['field'] = 'title';
$handler->display->display_options['fields']['title']['label'] = '';
$handler->display->display_options['fields']['title']['alter']['word_boundary'] = FALSE;
$handler->display->display_options['fields']['title']['alter']['ellipsis'] = FALSE;
/* Sort criterion: Content: Radioactivity (field_radioactivity:radioactivity_energy) */
$handler->display->display_options['sorts']['field_radioactivity_radioactivity_energy']['id'] = 'field_radioactivity_radioactivity_energy';
$handler->display->display_options['sorts']['field_radioactivity_radioactivity_energy']['table'] = 'field_data_field_radioactivity';
$handler->display->display_options['sorts']['field_radioactivity_radioactivity_energy']['field'] = 'field_radioactivity_radioactivity_energy';
$handler->display->display_options['sorts']['field_radioactivity_radioactivity_energy']['order'] = 'DESC';
/* Filter criterion: Content: Published */
$handler->display->display_options['filters']['status']['id'] = 'status';
$handler->display->display_options['filters']['status']['table'] = 'node';
$handler->display->display_options['filters']['status']['field'] = 'status';
$handler->display->display_options['filters']['status']['value'] = 1;
$handler->display->display_options['filters']['status']['group'] = 1;
$handler->display->display_options['filters']['status']['expose']['operator'] = FALSE;
/* Filter criterion: Content: Type */
$handler->display->display_options['filters']['type']['id'] = 'type';
$handler->display->display_options['filters']['type']['table'] = 'node';
$handler->display->display_options['filters']['type']['field'] = 'type';
$handler->display->display_options['filters']['type']['value'] = array(
  'page' => 'page',
);
$handler->display->display_options['filters']['type']['expose']['operator_id'] = 'type_op';
$handler->display->display_options['filters']['type']['expose']['label'] = 'Type';
$handler->display->display_options['filters']['type']['expose']['operator'] = 'type_op';
$handler->display->display_options['filters']['type']['expose']['identifier'] = 'type';
$handler->display->display_options['filters']['type']['expose']['remember_roles'] = array(
  2 => '2',
  1 => 0,
  3 => 0,
  95 => 0,
  96 => 0,
  94 => 0,
  104 => 0,
  105 => 0,
  106 => 0,
  107 => 0,
  108 => 0,
  109 => 0,
  110 => 0,
  111 => 0,
);
/* Filter criterion: Content: Topics (field_topics) */
$handler->display->display_options['filters']['field_topics_tid']['id'] = 'field_topics_tid';
$handler->display->display_options['filters']['field_topics_tid']['table'] = 'field_data_field_topics';
$handler->display->display_options['filters']['field_topics_tid']['field'] = 'field_topics_tid';
$handler->display->display_options['filters']['field_topics_tid']['expose']['operator_id'] = 'field_topics_tid_op';
$handler->display->display_options['filters']['field_topics_tid']['expose']['label'] = 'Topics (field_topics)';
$handler->display->display_options['filters']['field_topics_tid']['expose']['operator'] = 'field_topics_tid_op';
$handler->display->display_options['filters']['field_topics_tid']['expose']['identifier'] = 'field_topics_tid';
$handler->display->display_options['filters']['field_topics_tid']['expose']['remember_roles'] = array(
  2 => '2',
  1 => 0,
  3 => 0,
  95 => 0,
  96 => 0,
  94 => 0,
  104 => 0,
  105 => 0,
  106 => 0,
  107 => 0,
  108 => 0,
  109 => 0,
  110 => 0,
  111 => 0,
);
$handler->display->display_options['filters']['field_topics_tid']['type'] = 'select';
$handler->display->display_options['filters']['field_topics_tid']['vocabulary'] = 'topics';
$handler->display->display_options['filters']['field_topics_tid']['hierarchy'] = 1;
/* Display: Trending */
$handler = $view->new_display('page', 'Trending', 'page');
$handler->display->display_options['defaults']['hide_admin_links'] = FALSE;
$handler->display->display_options['defaults']['use_more'] = FALSE;
$handler->display->display_options['defaults']['use_more_always'] = FALSE;
$handler->display->display_options['defaults']['use_more_always'] = FALSE;
$handler->display->display_options['use_more_always'] = FALSE;
$handler->display->display_options['defaults']['use_more_text'] = FALSE;
$handler->display->display_options['use_more_text'] = 'More trending content';
$handler->display->display_options['defaults']['header'] = FALSE;
/* Header: Global: Text area */
$handler->display->display_options['header']['area']['id'] = 'area';
$handler->display->display_options['header']['area']['table'] = 'views';
$handler->display->display_options['header']['area']['field'] = 'area';
$handler->display->display_options['header']['area']['content'] = 'Below is a list of popular content on the site over the last 24 hours.';
$handler->display->display_options['header']['area']['format'] = 'filtered_html';
$handler->display->display_options['path'] = 'trending2';
/* Display: Front Page Block */
$handler = $view->new_display('block', 'Front Page Block', 'block');
$handler->display->display_options['defaults']['title'] = FALSE;
$handler->display->display_options['title'] = 'Trending';
$handler->display->display_options['defaults']['hide_admin_links'] = FALSE;
$handler->display->display_options['defaults']['pager'] = FALSE;
$handler->display->display_options['pager']['type'] = 'some';
$handler->display->display_options['pager']['options']['items_per_page'] = '3';
$handler->display->display_options['pager']['options']['offset'] = '0';
$handler->display->display_options['defaults']['style_plugin'] = FALSE;
$handler->display->display_options['style_plugin'] = 'default';
$handler->display->display_options['defaults']['style_options'] = FALSE;
$handler->display->display_options['defaults']['row_plugin'] = FALSE;
$handler->display->display_options['row_plugin'] = 'ds';
$handler->display->display_options['row_options']['view_mode'] = 'one_liner_with_thumbnail';
$handler->display->display_options['row_options']['load_comments'] = 0;
$handler->display->display_options['row_options']['alternating'] = 0;
$handler->display->display_options['row_options']['grouping'] = 0;
$handler->display->display_options['row_options']['advanced'] = 0;
$handler->display->display_options['row_options']['delta_fieldset']['delta_fields'] = array();
$handler->display->display_options['row_options']['grouping_fieldset']['group_field'] = 'field_data_field_radioactivity|field_radioactivity_radioactivity_energy';
$handler->display->display_options['row_options']['default_fieldset']['view_mode'] = 'one_liner_with_thumbnail';
$handler->display->display_options['defaults']['row_options'] = FALSE;
/* Display: Dashboard Block */
$handler = $view->new_display('block', 'Dashboard Block', 'dash_block');
$handler->display->display_options['defaults']['pager'] = FALSE;
$handler->display->display_options['pager']['type'] = 'some';
$handler->display->display_options['pager']['options']['items_per_page'] = '5';
$handler->display->display_options['pager']['options']['offset'] = '0';
$handler->display->display_options['defaults']['style_plugin'] = FALSE;
$handler->display->display_options['style_plugin'] = 'default';
$handler->display->display_options['defaults']['style_options'] = FALSE;
$handler->display->display_options['defaults']['row_plugin'] = FALSE;
$handler->display->display_options['row_plugin'] = 'node';
$handler->display->display_options['row_options']['view_mode'] = 'one_liner_with_thumbnail';
$handler->display->display_options['row_options']['links'] = FALSE;
$handler->display->display_options['defaults']['row_options'] = FALSE;
/* Display: Context */
$handler = $view->new_display('ctools_context', 'Context', 'ctools_context_1');
$handler->display->display_options['style_plugin'] = 'ctools_context';
$handler->display->display_options['row_plugin'] = 'ds';
$handler->display->display_options['row_options']['view_mode'] = 'teaser_half';
$handler->display->display_options['row_options']['load_comments'] = 0;
$handler->display->display_options['row_options']['alternating'] = 0;
$handler->display->display_options['row_options']['grouping'] = 0;
$handler->display->display_options['row_options']['advanced'] = 0;
$handler->display->display_options['row_options']['delta_fieldset']['delta_fields'] = array();
$handler->display->display_options['row_options']['grouping_fieldset']['group_field'] = 'field_data_field_radioactivity|field_radioactivity_radioactivity_energy';
$handler->display->display_options['row_options']['default_fieldset']['view_mode'] = 'teaser_half';
$handler->display->display_options['defaults']['header'] = FALSE;
/* Header: Global: Text area */
$handler->display->display_options['header']['area']['id'] = 'area';
$handler->display->display_options['header']['area']['table'] = 'views';
$handler->display->display_options['header']['area']['field'] = 'area';
$handler->display->display_options['header']['area']['content'] = 'The following articles have been identified as important and timely.';
$handler->display->display_options['header']['area']['format'] = 'plain_html';
$handler->display->display_options['inherit_panels_path'] = '1';

Replicated on a clean install.

Enabled page manager, panels and views content panes, views_ui and dependencies, all latest -dev versions.

1. Create a view with a context display. Do not add an exposed filter to it, do not add a header to it.

3. Create a custom panel page with a view context related to your view.

4. Add the view context panes to the panel page. Add header, rows & pager context panes.

5. View the page. You should get the error:

Notice: Undefined index: header in views_content_views_header_content_type_render() (line 32 of /home/sam/www/drupal/docroot/sites/all/modules/contrib/ctools/views_content/plugins/content_types/views_header.inc).
Notice: Undefined index: rows in views_content_views_row_content_type_render() (line 54 of /home/sam/www/drupal/docroot/sites/all/modules/contrib/ctools/views_content/plugins/content_types/views_row.inc).
Notice: Undefined index: pager in views_content_views_pager_content_type_render() (line 32 of /home/sam/www/drupal/docroot/sites/all/modules/contrib/ctools/views_content/plugins/content_types/views_pager.inc).

and the view will not render.

6. Go back to the view and add an exposed filter

7. Go back to the panel page again and it works.

Confirmed, I ran into this bug, the process in #3 worked to get the view loading again.

I'm also having this issue, but for some reason, the view isn't even showing up after I add a exposed form element to the panel. Have ended up giving up on views context and now just using a standard view display.

Issue summary:View changes

typo