@Khushwant Singh @David Green The login page background image is suddenly no longer working in multiple customer's spring '17 sandboxes; a colleague of mine @Marc Pulverman thinks this issue started in the last few days. I looked at it personally in one customer's sandbox this morning and we re-uploaded the background image into the new asset library and it shows in the branding editor as taking the image (and shows the preview of the image there), but the background of the login page in the builder doesn't refresh and continues to show the default image. After publishing changes and going to the actual login page, it also still shows the default background image. Here is an example: https://testfull-mulesoftprmx.cs19.force.com/support/s/login/ @Eno Gjerasi FYI