I just build a new roosting bar and nesting boxes to replace what I had. One of my girls refuses to use the new box, the other took to it without a problem. I keep finding eggs under the new bar and today the egg was really discolored. She lays a pretty dark brown egg but have found lots of white on the most recent egg and a really rough texture. Nothing has changed in her diet and I've even seen her in the new boxes but she wont lay in it. Any ideas?