That looks odd to me, and I'd be bugged by it too. Almost as if the pivot hole in the blade was drilled off-center (speculating, but that's what it looks like). OR, the end of the handle is excessively rounded off (I'm more accustomed to see this to some smaller degree on round-bolstered knives). I'd send that back to Case or the vendor where you bought it. I'm assuming the main blade doesn't have the same issue? Would be interesting to see them side-by-side, both blades open, to see how the spines line up.
David