Text in editor showing up to the right, not below/above photos

When we’re putting together a blog post, our text that we’re trying to write in between images is showing up to the right and waaay above where the photo is. No idea what’s happening. I think it might just be an issue in the actual editor because it shows up where it’s supposed to be when we preview the post. Just makes editing the blog post a beast because we have a ton of photos (wedding photographers) and like to interject between photos every now and then to say something and it’s horrible to put together when it keeps jumping to the top. Help!!