Renders end on black screen.

This might be a dumb question but lately whenever I render out a video from CA via AME, the video usually has a black frame included at the end of the video. When I check the AME settings, it is set to render out the work area, and when I check the work area in CA, it seems that it should just end on a still from the end of the animation, not a black frame. 

I can fix it easily before rendering by dragging the outpoint in the AME render window, but I'm wondering if there is a flaw in my workflow that would allow me to fix this without manually adjusting out points all the time.