Elementor Not Working On Some Pages
Elementor is a page builder used for building up the pages with the available Elements inside them.
Elementor will not work on some pre-defined system pages if you are planning to customize is UI Design Like :
User Dashboard
Search Achieve Result Page
Listing Detail Page
Submit Listing Page
Error 404 Pages
Payment Checkout
Blog Achieve Page
Shop Detail Page
Also, there is no Header / Footer Builder for Elementor, Elementor will not work to customize these sections below listed.
Header
Footer
Newsletter
Login Popup / Page
Contact Page Form Fields