@cybershot It would be helpful if you could give us a live example of what you’re talking about (in full context). There may be another overriding style that we aren’t aware of.
Although the top of the heading doesn’t line up with the top of the image, it still looks perfectly fine, and the vertical rhythm is completely natural.
I have tried, above, to explain why it is happening, and why it isn’t actually a bug. But perhaps I have misunderstood what you were actually referring to?