Why the wrong image appears

Google Chat reads og:image for the preview image. Common causes of the wrong image:

1. og:image points to the wrong URL
2. Cached preview from before you updated the image
3. Multiple og:image tags – Google Chat picks one you didn’t intend
4. Relative URL in og:image – fails to resolve, may fall back to something else

Diagnosis steps

1. View page source – check the exact og:image value
2. Load the image URL directly in a browser
3. Search HTML for duplicate og:image tags
4. Check the image URL for unexpected redirects

The fix

Correct the og:image tag, then share the URL in a new Google Chat message to trigger a fresh fetch. Old messages keep the cached image.

curl https://yoursite.com/page | grep -i "og:image"

Verify one og:image tag pointing to the correct absolute HTTPS URL.