I am having the exact same issue. Did you ever figure it out?
e: deleting my plugin and installing this worked: GitHub - Roslovets-Inc/strapi-plugin-ckeditor5: Replace Strapi default WYSIWYG editor with enhanced build
I am having the exact same issue. Did you ever figure it out?
e: deleting my plugin and installing this worked: GitHub - Roslovets-Inc/strapi-plugin-ckeditor5: Replace Strapi default WYSIWYG editor with enhanced build