On the dashboard the menu appears for non admin

Go to Settings >> Security and set “Ratings manipulation requires role of” to Admin.

Let me know if that fixes the issue.

Hello i just tested, the issue remains with that set to admin.

This is the html for author. it links to an upgrade page that is not relevant to non-admin. On hover a submenu with no text opens.

<li class="wp-has-submenu wp-not-current-submenu menu-top toplevel_page_rate-my-post" id="toplevel_page_rate-my-post">
	<a  class="wp-has-submenu wp-not-current-submenu menu-top toplevel_page_rate-my-post" data-ariahaspopup=""><div class="wp-menu-arrow"><div></div></div><div class="wp-menu-image dashicons-before dashicons-thumbs-up" aria-hidden="true"><br></div><div class="wp-menu-name">FeedbackWP</div></a>
	<ul class="wp-submenu wp-submenu-wrap"><li class="wp-submenu-head" aria-hidden="true">FeedbackWP</li></ul></li>

Can you please share a screenshot so I better understand where the link is displayed?

@collizo4sky

this is what it looks like for me, logged in as author:

Got it. This has now been fixed and will be available in the next update.

To get early access to the update, replace the content of ../rate-my-post/includes/dev-functions.php with https://pastebin.com/raw/zRnKmgDf