Code Runner not working with saved files

I recently installed the extension Code Runner in VS Code. I was testing it out in an untitled file and everything was working perfectly. However, when I saved the file and tried using Code Runner I start experiencing problems. It will run once and give the expected output, but any attempts at running it afterwards always produces the expected output from the first time. It works fine only in unsaved files. I thought no configurations were needed for this extension, but it seems like that is where the problem might lie. Any help is greatly appreciated. Thanks.

I have tried uninstalling the extension and then reinstalling along with restarting my computer.