Custom Schema settings not working

Hello,
In the schema settings under the post editor, when I change any setting, it doesn’t do anything. None of the settings are applied.
For example, in the “Name” field, I have tried changing it to just text or adding other tags, but still it would output the “Post Title” variable in the schema.
It’s the same with the other fields.

Also when I save a custom template for one post, it doesn’t show up in other posts under saved templates.
Is it a bug?