The issue here is that the user wanted to display the parent title of their post
Solution: When using the fields and views button to add the shortcode to the page, it should give you the option to select the post that you want to display the title for. This includes the Parent CPT. See Screenshot
If you select "Post Selection" and then "A post related to the current post, set by a Types relationship" then you should be able to select your parent CPT to display its title.
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