Background .png image gets a section of it cut off

Hey! I've drawn up a city background to use in a shmup i'm making, but the image has a section of it that is "sliced off" near the bottom right corner of the image. It's showing fine in the preview, but when I drop the image into the prefab, it gets cut off (see attached image).

I've tried re-saving the image under a different file name and dropping that into the sprite renderer, but it still has this issue. Any ideas?