My image was only 1080x1080 so I don’t think it would be considered too large either, and I don’t think it would be a stat that would matter more than Ko weight anyway… But I suspect a size + weight ratio maybe? Could be considered too heavy for its width and height?
And no, clicking on it doesn’t change anything, it was converted for good.
Here’s the image in question Monthly Art Challenge – December 2023 – Paint the Krita-Artists Logo! - #44 by Corentin