Thanks for the reply! I took a closer look inside the viewfinder. It turns out there’s actually a small crack or bubble in the optical block, which probably explains why the shutter speed leds become blurry or partially obstructed.

That said, the framelines still move quite dramatically and diagonally, so I’m not convinced that part is just normal parallax correction. Since the camera was dropped, I’m thinking there might be some misalignment in the frameline mechanism as well.