Cannot configure WYSIWYG editor

Hi,
I have install the CKEditor Integration 1.55 and CKEditor WebJar 1.55 on xWiki 13.7. But somehow I cannot configure the editor as Picture:
image

The system still uses the default editor. Am I missing something? Thanks in advance

some small bugs are fix by uninstall CKeditor intergration on farm and the reinstall. Problem solved