Sorry for the trouble. Have you tried to render the sequence and playback?
What is the selected renderer? Just for a test, change the renderer and see if it works. Here are the steps: FAQ: How to change the Video Renderer in Premiere Pro?
Let us know the status.
Are you sure you do not have the animation area very maximized when you do it?
Still having this issue, EliseRimmer? Or have you fixed it?
I tried to change the renderer and it was greyed out so I ended up updating my driver and it solved the problem.
Fix: Updated the driver.