I see what you mean. In the example below, I reproduced in EG 7.15 HF2 by moving Program from Process Flow 2 to Process Flow 1 and Process Flow 1 was activated, yet the dropdown still has the label "Process Flow 2" and if you create a new item it goes in the source flow instead of the destination (the one being viewed)...
You can sync it back up by single-clicking any process flow item in the Project Tree view.
Sorry for the inconvenience. This issue should go away in our next major release.
Casey