Why Elementor so incapacitated?

Hello, I can not work in the Elementor. Since I do not see those items that I add myself. They just don’t show up! Also crosses were terrible (buttons which close the information window), they are now in some white squares. In General, the plugin just does not work! And there are still a lot of such examples. As if it conflicts with something, or yourself! How to make a conflict test? While Elementor is not working!