I have a WordPress website with How-To tutorials so I have been putting "How To" schema markup at the top of each post. I am not using any 3rd-party plugins to handle the schema, I'm creating it by hand and injecting the script tag at the top of the WYSIWYG editor in line before the HTML content of the post.
I was going digging through Google Search Console and noticed a new article I posted was pulling the "How To" schema from a completely separate post and I am not sure how this is even possible. I also ran the page through a couple of schema markup tester tools and it's showing the same "How To" scheme from the other blog post.
I have never seen this happen on any of my other sites and I want to keep adding schema markup to all of my old posts but I want to figure out why this is happening before going any further.