Really weird image tiling bug

I’m making a scroll-animated hero section. It includes 5 layers which move a when scrolled down. When I insert an image to the second layer it’s all ok in the editor, but published site goes bonkers! It shows the image tiling on the parent div!? And when removing the image - or all images it’s still there. Only when I remove the parent div it goes away.

The images are large so has that something to do with this?

Hmmm. Bug is in Brave browser. At least edge and chrome are showing it ok.

Omg. I just realised it was larger breakpoint just tiling bg images that I removed from elsewhere. I’m dumb and this thread can be deleted.