When i install the Editor, it shows a error message when i try to open the wiki (directly at the mainpage, the wiki is completely out of order).
Topic on Extension talk:WYSIWYG
Appearance
got it working by following below thread, hope it helps I am on mediawiki 1.33.1
github.com/Mediawiki-wysiwyg/WYSIWYG-CKeditor/issues/122