id summary reporter owner description type status priority milestone component version resolution keywords cc 10402 TypeError: A/range is undefined when calling insertHtml after hide/show. martin "Repoducible on the Demo Page: http://ckeditor.com/demo {{{ var cke = CKEDITOR.instances.editor1 jQuery('#demo-standard').hide(); jQuery('#demo-standard').show(); cke.insertHtml(''); }}} Result: TypeError: A is undefined TypeError: range is undefined (with uncompressed sources) I tested this against release/4.1.x 3cb9cc24ed187a8ad29b810798f3427cc45a6fcf " Bug confirmed Normal Core : Editable 3.4 Firefox