It's possible. Possible, but not likely that she's got a bit of a glitch in the paint sprayer. First egg slowed down long enough for the brown to be applied, second egg shot past the paint booth before it got any paint! Just like a brown egg layer who is nearing the end of her cycle: her eggs will get lighter, and sometimes, but not often, a brown egg layer will lay an egg that is almost white. So, if HC only has one possible culprit... this may be the issue she's seeing. BTW, HC, typically, each EE lays a specific colored egg, and her eggs are always that color, though there may be a slight variation in the application of the brown tint. And some hens eggs can be identified by egg shape. I had one EE who always laid a torpedo shaped egg.
