Page Template Problems

I’ve been having an issue with page templating. I’ve set a static page as my home page and my blog as domain.com/blog. The problem that I’m having is my blog page is calling the page template that I have assigned to my homepage.

All my other pages are calling the unique page template that I made for them, but for some reason my blog page is not.

My homepage template is named homepage.php. The blog page should be calling index.php, but for some reason it calls homepage.php any help appreciated.

Thanks,