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Bumping this to just give some insight that might be generally helpful:
3689348814741910324 is 11001100110011001100110011001100110011001100110011001100110100 in base 2.
1100'1100'1100'1100'1100'1100'1100'1100'1100'1100'1100'1100'1100'1100'1101'00
1100 is 'C' in hex.
The last two 0s there might have been from the two attempted allocations?
But basically, whenever you see 'CC' a bunch of times, that's the value that Visual Studio fills in for uninitialized bytes in debug mode.