Exactly the same problem here. On Chrome and Firefox too ??
Can’t upload media on a post o page after update to 4.6
Here you have more information if it can help…
ON LOAD:
Chrome console, when I’m on a post or page says “Uncaught TypeError: (intermediate value)(intermediate value) is not a function” on this call:
/wp-admin/load-scripts.php?c=1&load%5B%5D=hoverIntent,common,admin-bar,heartbeat,autosave,wp-ajax-response,jquery-color,wp-lists,jquery-query,admin-comments,suggest,tags-&load%5B%5D=box,underscore,word-count,post,editor-expand,thickbox,shortcode,backbone,wp-util,wp-backbone,media-models,wp-plupload,mediaeleme&load%5B%5D=nt,wp-mediaelement,media-views,media-editor,media-audiovideo,mce-view,imgareaselect,image-edit,svg-painter,wp-auth-check,jquery-&load%5B%5D=ui-resizable,jquery-ui-button,jquery-ui-dialog,wpdialogs,editor,wplink,media-upload,wp-embed&ver=4.6.1
And this “Uncaught TypeError: Cannot read property ‘hasClass’ of undefined” on this call:
/wp-admin/load-scripts.php?c=1&load%5B%5D=hoverIntent,common,admin-bar,heartbeat,autosave,wp-ajax-response,jquery-color,wp-lists,jquery-query,admin-comments,suggest,tags-&load%5B%5D=box,underscore,word-count,post,editor-expand,thickbox,shortcode,backbone,wp-util,wp-backbone,media-models,wp-plupload,mediaeleme&load%5B%5D=nt,wp-mediaelement,media-views,media-editor,media-audiovideo,mce-view,imgareaselect,image-edit,svg-painter,wp-auth-check,jquery-&load%5B%5D=ui-resizable,jquery-ui-button,jquery-ui-dialog,wpdialogs,editor,wplink,media-upload,wp-embed&ver=4.6.1
WHEN I CLICK FEATURED IMAGE:
And when I click on featured image this error appear “Uncaught TypeError: (intermediate value)(intermediate value) is not a function” on this call:
/wp-admin/load-scripts.php?c=1&load%5B%5D=hoverIntent,common,admin-bar,heartbeat,autosave,wp-ajax-response,jquery-color,wp-lists,jquery-query,admin-comments,suggest,tags-&load%5B%5D=box,underscore,word-count,post,editor-expand,thickbox,shortcode,backbone,wp-util,wp-backbone,media-models,wp-plupload,mediaeleme&load%5B%5D=nt,wp-mediaelement,media-views,media-editor,media-audiovideo,mce-view,imgareaselect,image-edit,svg-painter,wp-auth-check,jquery-&load%5B%5D=ui-resizable,jquery-ui-button,jquery-ui-dialog,wpdialogs,editor,wplink,media-upload,wp-embed&ver=4.6.1