Debug view of std::deque memory is incorrect

I am guessing the debugging view of std::deque types is acting as if each index is located sequentially in memory.  With a deque size of around 70, the first ten entries all match the data that I expect.  Any entries after 10, then become garbage.  I replaced the deque with a vector and the problem disappears from the debugger.

I am using a POD struct of integers and doubles.