Troubleshooting Calendar Events Not Showing In Home Assistant Bubble Card

Displaying your calendar events within Home Assistant can be incredibly useful for a quick overview of your schedule. The Bubble Card is a popular custom card that allows you to visualize your calendar data in a visually appealing way. However, you might encounter situations where your calendar isn't showing all expected events. This article will guide you through troubleshooting steps to resolve this issue, focusing on a specific scenario reported by a user experiencing this problem with their Home Assistant Bubble Card.

Understanding the Issue

A user named Alex encountered an issue where their Bubble Card was only displaying two calendar events, despite having more events scheduled. These two events were occurring within the next seven days, and Alex had set a limit of five events to be displayed. However, three additional events in the week after next were not showing up. Alex's card YAML configuration was as follows:

type: custom:bubble-card
card_type: calendar
event_action:
  tap_action:
    action: more-info
  double_tap_action:
    action: none
  hold_action:
    action: none
entities:
  - entity: calendar.unser_kalender
    color: green
limit: 5
show_end: true
show_progress: true
show_place: true
grid_options:
  columns: full
scrolling_effect: true
card_layout: large
sub_button: []
rows: "5"
styles: |-
  ha-card {
      --bubble-main-background-color: rgba(255,255,255,1.1) !important;
      --bubble-border-radius: var(--ha-card-border-radius, 12px);    
      --bubble-icon-background-color: rgba(200,200,200,0.5) !important;
      --bubble-border: 0.1mm solid rgba(200,200,200,0.5) !important;
      --bubble-box-shadow: 1px 1px 1px 1px rgba(200, 200, 200, 0.1);
      --bubble-icon-border-radius: 12px;
    }
modules: []

Alex's question highlights a common problem: why are calendar events not showing up in the Home Assistant Bubble Card? This article will explore potential causes and solutions to ensure all your calendar events are correctly displayed.

Key Troubleshooting Steps for Missing Calendar Events

When your calendar events are not fully visible in your Home Assistant Bubble Card, a systematic approach to troubleshooting is essential. These troubleshooting steps are designed to address the most common causes of this issue, ensuring you can quickly identify and resolve the problem. By following these steps, you can ensure your Bubble Card accurately reflects your calendar schedule, enhancing your Home Assistant experience. It is important to verify these steps to ensure your calendar events are displayed correctly.

1. Verify Calendar Entity Configuration

The first step in troubleshooting is to verify the calendar entity configuration. Ensure that the entity specified in your Bubble Card configuration (calendar.unser_kalender in Alex's case) is correctly set up in Home Assistant. This involves checking that the calendar integration is properly configured and that Home Assistant is successfully fetching events from the calendar source (e.g., Google Calendar, iCloud Calendar, local calendar). If the calendar entity isn't set up correctly, the Bubble Card won't be able to display any events. You should navigate to the Home Assistant integrations page and confirm that the calendar integration is active and error-free. Look for any error messages or warnings related to the calendar integration, which might indicate authentication issues or other problems. Additionally, ensure that the calendar entity is enabled and not disabled in Home Assistant's entity registry. If the entity is disabled, Home Assistant will not track events from that calendar, and they won't appear in the Bubble Card. Double-check the entity ID (calendar.unser_kalender) in your Bubble Card YAML configuration to make sure it exactly matches the entity ID in Home Assistant. Even a minor typo can prevent the card from displaying the correct events. By thoroughly verifying the calendar entity configuration, you can rule out a common cause of missing events in the Bubble Card.

2. Check the Date Range and Event Limits

Another critical aspect to examine is the date range and event limits configured in your Bubble Card. The limit parameter in the YAML configuration determines the maximum number of events to display. If this limit is set too low, it might prevent all your events from showing up. In Alex's case, the limit was set to 5, but there were more than 5 events within a relevant timeframe, which could be a contributing factor. In addition to the limit, you need to consider the date range that the Bubble Card is configured to display. By default, the card typically shows events within the upcoming days or weeks. If the events you expect to see are outside this default range, they won't appear. The Bubble Card might have options or settings to adjust the date range, allowing you to include events further into the future. Review the documentation or settings for the Bubble Card to see if you can extend the date range. Furthermore, ensure that the events themselves have valid start and end dates. Events with incorrect or missing dates might not be recognized by the card. Verify that the events are properly configured in your calendar source (e.g., Google Calendar) and that these dates are being accurately synced to Home Assistant. By carefully checking the date range and event limits, you can ensure that the Bubble Card is configured to display all the events you need to see.

3. Review the Bubble Card Configuration YAML

Thoroughly reviewing the Bubble Card configuration YAML is essential for identifying any potential errors or misconfigurations. The YAML file dictates how the Bubble Card functions and displays information, so any mistakes here can lead to issues like missing events. Examine the entities section of the YAML to ensure that the correct calendar entity is specified. As mentioned earlier, a typo in the entity ID can prevent the card from fetching events from the intended calendar. Check for any filters or conditions that might be unintentionally excluding certain events. The Bubble Card might have options to filter events based on specific criteria, such as keywords or calendar types. If any filters are active, make sure they are not excluding the events you want to see. Pay close attention to the indentation in the YAML file. YAML is indentation-sensitive, meaning that incorrect indentation can lead to parsing errors or unexpected behavior. Use a YAML validator or editor that can highlight indentation issues. Look for any custom styling or theming options that might be interfering with the display of events. Custom styles can sometimes inadvertently hide or obscure events if they are not configured correctly. If you've made any recent changes to the YAML configuration, try reverting to a previous version to see if that resolves the issue. This can help you identify if a specific change is causing the problem. By meticulously reviewing the YAML configuration, you can pinpoint and correct any errors that are preventing your calendar events from displaying properly.

4. Check for Conflicting Customizations or Themes

Another potential cause for missing calendar events in the Bubble Card is conflicting customizations or themes within your Home Assistant setup. Custom themes and card customizations can sometimes interfere with the rendering of the Bubble Card, leading to unexpected behavior, such as events not being displayed. If you are using a custom theme, try switching back to the default Home Assistant theme to see if the issue persists. This will help you determine if the theme is the source of the problem. Some themes might have styles that conflict with the Bubble Card's styling, causing events to be hidden or displayed incorrectly. Review any custom card configurations you have in place, especially those that might affect the appearance or behavior of calendar cards. Conflicting configurations can sometimes override the Bubble Card's settings, leading to missing events. Check for any custom CSS or JavaScript code that you might have added to your Home Assistant configuration. Custom code can sometimes introduce unintended side effects that interfere with the Bubble Card's functionality. If you have multiple custom cards or integrations installed, try disabling them one by one to see if any of them are conflicting with the Bubble Card. This can help you isolate the source of the conflict. If you recently updated any custom components or themes, there might be compatibility issues with the Bubble Card. Check the release notes or documentation for the updated components to see if there are any known conflicts or required configuration changes. By systematically checking for conflicting customizations and themes, you can identify and resolve issues that are preventing your calendar events from displaying correctly.

5. Clear Cache and Restart Home Assistant

Sometimes, the solution to display problems in Home Assistant is as simple as clearing the cache and restarting Home Assistant. Cached data can sometimes become corrupted or outdated, leading to display issues like missing calendar events. Clearing the browser cache is a good first step. Your browser stores temporary files and data to speed up page loading, but this cached data can sometimes interfere with the proper rendering of web pages. Clear your browser's cache and cookies, then reload Home Assistant to see if the issue is resolved. Next, clear the Home Assistant cache. Home Assistant also caches data to improve performance. You can clear this cache by restarting Home Assistant. A restart will clear the cached data and force Home Assistant to reload the necessary components and configurations. To restart Home Assistant, navigate to the Configuration panel, then click on