Images not appearing in Builder or Proof
If your images are not appearing in the browser pane in Builder or Proof, we recommend checking to see if you are using HTTP image links.
HTTP links may not appear because your browser settings are not allowing Mixed Content/Unsecure Content. Litmus does not block mixed content on our end so if the problem appears suddenly, it may be due to security rules applied by your IT team, or just general browser updates causing changes to those rules.
In order to view those images, you need to either ensure Mixed Content/Unsecure Content is allowed at the Site Settings level, the admin policy level and, if that does not resolve the issue or it's not possible, you will need to work with your IT team to host your images as HTTPS/ensure the SSL cert for those images are applied correctly.
In Chrome, you can select the lock next to the URL in the browser bar, then Site Settings. Scroll down to Insecure Content and switch the dropdown to Allow.
Before making changes to your Site Settings, please consult your IT team as they may want to review any changes to the security settings of your browser instances.