I have the same issue! Is there a workaround by now?
Hmm, well that is good news of course 🙂 Maybe there was a fix after the wordpress update. I will keep observing. Thanks for the feedback!
Hey thanks for the reply. I actually resized it already to a mere 195kb. It shouldn’t be the size. I cannot reconstruct the BAD GATEWAY error, though. All machines will open the website, however only some will show the background image. Maybe interesting to know as well: If no background image is shown, the text (and button) will move to the top of the screen. Any other ideas?