Image not appearing on preview

Hey all,

This.... is very frustrating. I can't get my parallax block background image to show up on preview. Note, I mean, specifically, on preview. The image shows up fine in the studio.

When the page loads, the image flashes on the screen for a second, and then disappears.

Does anyone have any ideas what's happening, or what I can do to fix it? I've made sure the height exists on the block, that the image is imported in BSS and not some fantasy URL in the stratosphere, I've deleted and replaced the block at least four times.

Any help would be greatly appreciated.

Can't do much to help without seeing the live site or your .bsdesign file.