Cannot set SEO for router page with page code

Hi, I was trying to implement SEO for router pages like so:

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It didn't work and I was trying to fix it for hours. Finally I found out what the problem is. I hope that it can be fixed somehow.

Please consider the following two pages on my test site

https://verbaldancing.editorx.io/my-site-1/test

https://verbaldancing.editorx.io/my-site-1/test2

I tried to implement SEO with some structured data for both of them.

Try testing them both with https://validator.schema.org/

Both of these pages have the exact same router code with meta tags and structured data. The only difference is that test2 has got some page code. This is what seems to stop the SEO from working.