Why can't I add an image to a block?

Last updated: November 11, 2026

To add an image to a study using the Upload image option, your browser should be able to access images stored locally on your computer.

If using Chrome on macOS, you must grant Chrome explicit permission to access your files. Otherwise, it won’t be able to browse images.

If this permission is missing, Chrome will prevent the file browser from opening when you click Upload Image in the study builder.

Chrome may lose this permission due to system or browser updates. If this occurs, you’ll need to re-authorize Chrome.

Solution

Authorize Chrome

If you prefer not to give Chrome full-disk access, you can still add images by dragging them directly from Finder into the Upload Images button.

  1. Open the Apple menu in the top left corner of the menu bar.

  2. Open ‌System Settings.

  3. Open Privacy & Security.

  4. Select Full Disk Access.

  5. Make sure that Google Chrome is visible in the list of apps on the right, and that it’s enabled as shown in the image. If it’s listed but not enabled, click the toggle on the right side. If it isn’t listed, click the + icon to browse for Google Chrome and add it to the list.

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  6. You’ll need to restart Chrome for the changes to come into effect.

Update Chrome

In some cases, the issue may persist even after giving Chrome full disk access.

To prevent this, please make sure that you are using the latest version of Chrome. An outdated version may lead to unexpected issues.

Why do I see an "Upload failed" error when adding an image?

If you see an Upload failed message when adding an image to a block, your network is most likely blocking the upload rather than anything being wrong with the image itself. Some organizations, especially banks, financial institutions, and other companies with strict security policies, restrict or block connections to AWS S3 from their corporate network or VPN. When that happens, the upload is stopped before it reaches Maze.

Check whether your network is the cause:

1. Disconnect from your company VPN, if you're using one.

2. Connect to a different network, such as your home Wi-Fi or a mobile hotspot. If possible, use a personal device that isn't managed by your organization.

3. Open your study in Maze and try uploading the same image again.

If the image uploads successfully, your company network is blocking uploads to AWS S3.

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Still need help?

If you have any questions or concerns, please let our Support team know — we'll be happy to help!