Issue with adding html tag in markdown editor

I am trying to add a Youtube embed link in a markdown editor in a blog post.

After saving and publishing the blog post. It looks like this

The issue is with v13 on frappe cloud, the nightly version doesn’t have this issue.

I’m version-13 (Frappe v13.29.2, ERPNext v13.30.0) and I’m getting this error. HTML editor field turns these YouTube embed videos to <iframe etc.

Is there a system setting I’m missing to turn off?

I do have same problem with