Question on the Squadron Signal book armor #5

I received the above book about the Nashorn, Brummbar, and Hummel and noticed it didn’t have any colored line-art in the center of the book like my other editions. Is this really the case or did I get a bum book?

I have numbers 1, 2 and 3, and they have no color in them beyond the front and back cover. The next issue I have is number 7; it does have a center color spread.

Thank you Rob. I do suspect that this edition probably didn’t have it then.