I was originally using the Ele Custom Skin plugin for loop templates for my posts. Now, because Elementor now has the loop featured I tried switching to that one. However the search plugin doesn’t seem to work with Elementor loop. The results don’t change based on the search, even though it looks like it loads a new query. The class is setup correctly, so I’m not sure what could be causing this.
Loop grid intergration is under testing yet – however some features should still work. If you try to place it to an archive page (taxonomy, search or post type archive) and set the loop grid to use “current query” then it should work.
A full support will be added in the next major release (4.27).