Plugin Removes Theme Formatting Even When Uninstalled

I should have read these reviews prior to installing. When I installed the plugin and activated it, all my theme and element builder stylesheets and formatting were instantly cleared on every page (I use Beaver Builder). When I deactivated and deleted the AMP for WP plugin, my original formatting and styles were returned. HOWEVER, even though their plugin is uninstalled and deleted, whenever I publish a new page from the dashboard, THEIR AMP for WP formatting remains and becomes the default. I then have to republish the page using my element builder’s cache to regain stylesheets and formatting.

My educated guess is that some of their code remains left behind after uninstall and deletion and that causes the error. I contacted support, and as others have said here, it was useless. The support I got actually blamed Google for changing my formatting! Reading through the reviews, nearly all of the 1-star reviews speak of similar experiences. AVOID this plugin until they have fixed the issue.