I think it's all tied up in the fact that while drawing spousal you are considered a "dependent" and everything is under your spouse's SS number. I am also on spousal and I watched the SS website like a hawk (much like you) and I had that same 0.00 until after the first payment was made (under spousal). I think just a quirky way SS has for dealing with these things. The whole thing is weird. The process is not transparent, but it all worked out just fine. I'm sure yours will too.
And whatever your labors and aspirations in the noisy confusion of life, keep peace in your soul. With all its sham, drudgery, and broken dreams, it is still a beautiful world. Be cheerful. Strive to be happy.- Desiderata by Max Ehrmann