I am also geetting the same error. Any help would be great!
Uncaught TypeError: t.getContainerType is not a function
at Events.register (common.min.js?ver=2.8.4:2)
at Events.registerAfter (common.min.js?ver=2.8.4:2)
at InnerSectionColumns.register (editor-document.min.js?ver=2.8.4:2)
at InnerSectionColumns.CallbackBase (editor-document.min.js?ver=2.8.4:2)
at InnerSectionColumns.Base (editor-document.min.js?ver=2.8.4:2)
at InnerSectionColumns.After (editor-document.min.js?ver=2.8.4:2)
at new InnerSectionColumns (editor-document.min.js?ver=2.8.4:2)
at editor-document.min.js?ver=2.8.4:2
at Array.forEach (<anonymous>)
at Component.onInit (editor-document.min.js?ver=2.8.4:2)
