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Fix Microsoft Forms Disappearing on Custom Time Entry

Maira Mehtab Sep 22, 2026 868 views

Question details

Users need to resolve an issue where a form generated from a list goes completely blank when entering a custom time manually.

Product: Microsoft Forms
Device & OS: not provided
Scenario: Entering a specific custom time value (such as 1:22 or 11:05) directly into a form field instead of selecting a suggested value from the drop-down list.
Observed behavior: The form suddenly disappears or becomes entirely blank upon entering the custom time, an issue that affects multiple forms and colleagues.

Before you start

Ensure you have the affected form URL and your list configuration details handy, as you may need to provide these to your IT administrator if basic browser troubleshooting fails.

Solution 1Recommended

Perform Basic Browser Troubleshooting

Rule out local browser caching issues by clearing your cache and using a private browsing mode to test the form.

Sometimes corrupted local cache or browser extensions can interfere with form scripts. Testing in a clean environment helps isolate the cause.

Use Private Browsing Mode

Open an InPrivate window in Microsoft Edge or an Incognito window in Google Chrome, navigate to the form URL, and attempt to enter the custom time again.

Clear Browser Cache

If the issue persists in private mode, go to your browser settings, locate the privacy or history section, and clear your cached images, files, and cookies.

Test Alternative Browsers

Open the form in a completely different supported browser to verify if the problem is isolated to a specific browser engine.

Troubleshooting Scope: If the form still disappears after these steps and affects multiple colleagues, it indicates a backend system issue rather than a local browser problem.

Solution 2

Escalate to Microsoft 365 Support via IT Admin

Since the issue impacts multiple users and forms, it requires backend investigation by Microsoft Support.

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Frequently Asked Questions

Why does my Microsoft Form go blank when I type a custom time?

This is typically caused by a backend script or validation glitch in Microsoft Lists/Forms. When manual custom time inputs bypass the expected drop-down validation, the page rendering can fail, resulting in a blank screen.

Will clearing my browser cache permanently fix the form disappearing issue?

Clearing the cache only resolves local rendering issues. If the problem is a backend bug affecting multiple users and forms, clearing the cache is a good diagnostic step but will not serve as a permanent fix.

How do I report a persistent Microsoft Forms bug?

You should gather the form URL, specific timestamps, and screenshots of the failure, then provide them to your IT administrator. They have the necessary permissions to submit a formal support request through the Microsoft 365 admin center.

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