Sharepoint List Display Issue

Dear @Johnson, Christopher D (HEALTH),

Thank you for reaching out to Microsoft Q&A forum.

I understand that you're encountering an issue with your SharePoint List, specifically with invisible cards in the Board View. From my research, it seems that the issue is related to a conflict in the JSON formatting or a rendering issue within the Card Designer. Even though the data is being fetched from the server, the browser fails to render the card correctly, often due to a problematic column value or character.

As a forum moderator, I wish I could directly access your account or investigate the backend systems to resolve this issue. However, our role here is to provide general guidance and solutions that you can apply. Please follow the steps below to see if they resolve the issue:

1: Reset the Card Designer

The issue with invisible cards is usually related to corruption in the visual layout code rather than the data itself. Here’s how to reset the Card Designer:

1. Open your Board View.
2. Click the View menu (top right, where it says "Board") and select Edit current view.
3. Scroll down to the Columns section and click Customize Card.
4. Even if you like your current layout, try unchecking a few columns (especially "Choice" or "Person" columns) to see if the cards reappear.
5. If that fails, click Reset to default style at the bottom of the Customize Card pane.

2: Check Grouping Values

Board views group items into "buckets." If an item belongs to a bucket that has been partially deleted or renamed in the background, the card can become "un-rendered."

1. Change your view back to a List view.
2. Look at the column you are using for your Board "buckets" (e.g., Status).
3. Check if any items have a blank value or a value that is no longer in the official Choice list.
4. Re-assign those items to a valid status and switch back to Board view.

3: Check for "Conditional Formatting" JSON

If someone previously applied "conditional formatting" to change card colors based on a date or status, a tiny syntax error in that code can make the entire card transparent.

1. In Board View, click the View menu > Format current view.
2. Select Format columns > Manage rules.
3. Temporarily delete any rules that change the card background or border. If the cards reappear, the JSON logic was the core issue.

4: Rule out the "Threshold" issue

1. Check if your list has more than 5,000 items.
2. If it does, the Board View may "throttle" the rendering of cards, leading to the blank spaces you are seeing.
3. Apply a filter to the view so it only displays a smaller subset of items (e.g., only "Active" items).

If none of the above solutions work, let me know in the comments for further investigation. Please note that our initial response does not always resolve the issue immediately. However, with your help and more detailed information, we can work together to find a solution. Thank you for your patience and understanding. I'm looking forward to your reply. 

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