What happened to the post preview panel? (originally asked about Sam's Simple Theme, but seems to affect all of them)

[gnoitall]

@LSLGuy

That’s a different thread

Why is there suddenly an image of a cookie in the bottom left of my screen?

And why won’t it go away? When I click on it, I get a whole bunch of cookie policy options, and when I agree and click “Save”, the stubborn partially eaten cookie image is still there. What purpose does it now serve except to be an annoying distraction (it partially obscures the “Reply” button)?