I have same problem. I have newest version of Elementor and ElementsKit Lite and my loader on edit page stuck. In console I have:
TypeError: Cannot read properties of null (reading 'getEditModel')
at addCustomCss (editor-support.js?ver=1.0.0:4:20)
at _runHook (editor.min.js?ver=3.5.6:2:494439)
at Object.applyFilters (editor.min.js?ver=3.5.6:2:494748)
at child.addStyleToDocument (editor.min.js?ver=3.5.6:2:435338)
at child.T.each.B.<computed> [as addStyleToDocument] (common-modules.min.js?ver=3.5.6:2:53571)
at Manager.renderGlobalsDefaultCSS (editor.min.js?ver=3.5.6:2:567483)
at Editor.<anonymous> (editor.min.js?ver=3.5.6:2:563513)
at Editor.<anonymous> (load-scripts.php?c=1&load[chunk_0]=jquery-core,jquery-migrate,regenerator-runtime,wp-polyfill,underscore,shortcode,utils,backbone,wp-util,wp-backbone,media-models,&load[chunk_1]=moxiejs,plupload,wp-plupload,jquery-ui-core,jquery-ui-mouse,jquery-ui-sortable&ver=5.9.1:22:2630)
at Editor.<anonymous> (load-scripts.php?c=1&load[chunk_0]=jquery-core,jquery-migrate,regenerator-runtime,wp-polyfill,underscore,shortcode,utils,backbone,wp-util,wp-backbone,media-models,&load[chunk_1]=moxiejs,plupload,wp-plupload,jquery-ui-core,jquery-ui-mouse,jquery-ui-sortable&ver=5.9.1:16:8649)
at p (load-scripts.php?c=1&load[chunk_0]=jquery-core,jquery-migrate,regenerator-runtime,wp-polyfill,underscore,shortcode,utils,backbone,wp-util,wp-backbone,media-models,&load[chunk_1]=moxiejs,plupload,wp-plupload,jquery-ui-core,jquery-ui-mouse,jquery-ui-sortable&ver=5.9.1:22:3075)
consoleError @ common.min.js?ver=3.5.6:2
/favicon.ico:1 Failed to load resource: the server responded with a status of 404 ()
editor-support.js?ver=1.0.0:4 Uncaught (in promise) TypeError: Cannot read properties of null (reading 'getEditModel')
at addCustomCss (editor-support.js?ver=1.0.0:4:20)
at _runHook (editor.min.js?ver=3.5.6:2:494439)
at Object.applyFilters (editor.min.js?ver=3.5.6:2:494748)
at child.addStyleToDocument (editor.min.js?ver=3.5.6:2:435338)
at child.T.each.B.<computed> [as addStyleToDocument] (common-modules.min.js?ver=3.5.6:2:53571)
at Manager.renderGlobalsDefaultCSS (editor.min.js?ver=3.5.6:2:567483)
at Editor.<anonymous> (editor.min.js?ver=3.5.6:2:563513)
at Editor.<anonymous> (load-scripts.php?c=1&load[chunk_0]=jquery-core,jquery-migrate,regenerator-runtime,wp-polyfill,underscore,shortcode,utils,backbone,wp-util,wp-backbone,media-models,&load[chunk_1]=moxiejs,plupload,wp-plupload,jquery-ui-core,jquery-ui-mouse,jquery-ui-sortable&ver=5.9.1:22:2630)
at Editor.<anonymous> (load-scripts.php?c=1&load[chunk_0]=jquery-core,jquery-migrate,regenerator-runtime,wp-polyfill,underscore,shortcode,utils,backbone,wp-util,wp-backbone,media-models,&load[chunk_1]=moxiejs,plupload,wp-plupload,jquery-ui-core,jquery-ui-mouse,jquery-ui-sortable&ver=5.9.1:16:8649)
at p (load-scripts.php?c=1&load[chunk_0]=jquery-core,jquery-migrate,regenerator-runtime,wp-polyfill,underscore,shortcode,utils,backbone,wp-util,wp-backbone,media-models,&load[chunk_1]=moxiejs,plupload,wp-plupload,jquery-ui-core,jquery-ui-mouse,jquery-ui-sortable&ver=5.9.1:22:3075)
widget-styles-pro.css:1 Failed to load resource: the server responded with a status of 404 ()
Please help me