movie render queue is rendering garbled frames. How do I fix this?

[VentarTheBard]

I’ve rendered out pngs in the render queue once or twice before, and now something has gone terribly wrong.

Here is what I see in my viewport:

And here is what it renders:

I’m only rendering out one frame. As far as I can tell, my render settings are the same as they always have been. What could possibly be causing this?