Here are some steps to troubleshoot when your Microsoft Forms form is not loading on mobile devices:

1. Check if the device is connected to the internet.
2. Restart the device.
3. Remove any ad-blockers or firewall settings that could be blocking the form.
4. Try using a different web browser.
5. Make sure JavaScript is enabled, and any plugins or add-ons that can disturb the loading process are disabled.
6. Check if the same issue occurs in incognito mode.