Hi Kimberly -- to answer your question, no not really. :)
The reason is because the Release you've selected above has a certain timebox associated with it .. i.e. "Q1 2015". So the Iterations listed below it are within that timebox, i.e:
Q1 2015
- Jan A
- Jan B
- Feb A
- Feb B
- Mar A
- Mar B
So, if a story was moved into the Feb B Iteration, it would also be assigned to the Q1 2015 Release since it's in that Release's timebox.
Does that make sense?