Exception: Uncaught TypeError: Cannot read property 'closest' of undefined

[tsahi]

I'm getting sometimes the following error when moving items in Active Sprint window

How do I fix it?

An error occurred

Please try refreshing the page, or contact your administrator / Atlassian Support if the problem continues.

Details

1. • Exception: Uncaught TypeError: Cannot read property 'closest' of undefined
   • Resource: http://jira-prod.radcom.co.il:8080/s/9d84110b265115ae35662eb36c7ed1ed-CDN/ea4dbb/76001/4d9defc504db757cbea4102b4f3a49a3/9da8f4aee720f116827db19da0c18a12/_/download/contextbatch/js/greenhopper-rapid-non-gadget,atl.general,gh-rapid,jira.project.sidebar,com.atlassian.jira.projects.sidebar.init,jira.global,jira.general,-_super/batch.js?agile_global_admin_condition=true&is-server-instance=true&jag=true&jaguser=true&jira-nps-enabled=true&locale=en-US&nps-acknowledged=true&nps-not-opted-out=true&riched...
   • Line: 20135
   • Column: 184627
2. • Exception: Uncaught TypeError: Cannot read property 'closest' of undefined
   • Resource: http://jira-prod.radcom.co.il:8080/s/9d84110b265115ae35662eb36c7ed1ed-CDN/ea4dbb/76001/4d9defc504db757cbea4102b4f3a49a3/9da8f4aee720f116827db19da0c18a12/_/download/contextbatch/js/greenhopper-rapid-non-gadget,atl.general,gh-rapid,jira.project.sidebar,com.atlassian.jira.projects.sidebar.init,jira.global,jira.general,-_super/batch.js?agile_global_admin_condition=true&is-server-instance=true&jag=true&jaguser=true&jira-nps-enabled=true&locale=en-US&nps-acknowledged=true&nps-not-opted-out=true&riched...
   • Line: 20135
   • Column: 184627

Environment

Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/66.0.3359.181 Safari/537.36

Stack trace

• TypeError: Cannot read property 'closest' of undefined
• at e.postValidator (http://jira-prod.radcom.co.il:8080/s/9d84110b265115ae35662eb36c7ed1ed-CDN/ea4dbb/76001/4d9defc504db757cbea4102b4f3a49a3/9da8f4aee720f116827db19da0c18a12/_/download/contextbatch/js/greenhopper-rapid-non-gadget,atl.general,gh-rapid,jira.project.sidebar,com.atlassian.jira.projects.sidebar.init,jira.global,jira.general,-_super/batch.js?agile_global_admin_condition=true&is-server-instance=true&jag=true&jaguser=true&jira-nps-enabled=true&locale=en-US&nps-acknowledged=true&nps-not-opted-out=true&riched...)
• at t.i [as fire] (http://jira-prod.radcom.co.il:8080/s/d41d8cd98f00b204e9800998ecf8427e-CDN/ea4dbb/76001/4d9defc504db757cbea4102b4f3a49a3/2.1.5/_/download/resources/com.atlassian.jira.plugins.jira-editor-plugin:tinymce/tinymce.js?batch=false:8:14174)
• at B.fire (http://jira-prod.radcom.co.il:8080/s/d41d8cd98f00b204e9800998ecf8427e-CDN/ea4dbb/76001/4d9defc504db757cbea4102b4f3a49a3/2.1.5/_/download/resources/com.atlassian.jira.plugins.jira-editor-plugin:tinymce/tinymce.js?batch=false:8:16059)
• at p.o (http://jira-prod.radcom.co.il:8080/s/d41d8cd98f00b204e9800998ecf8427e-CDN/ea4dbb/76001/4d9defc504db757cbea4102b4f3a49a3/2.1.5/_/download/resources/com.atlassian.jira.plugins.jira-editor-plugin:tinymce/tinymce.js?batch=false:11:31258)
• at e (http://jira-prod.radcom.co.il:8080/s/d41d8cd98f00b204e9800998ecf8427e-CDN/ea4dbb/76001/4d9defc504db757cbea4102b4f3a49a3/2.1.5/_/download/resources/com.atlassian.jira.plugins.jira-editor-plugin:tinymce/tinymce.js?batch=false:2:12423)
• at HTMLDocument.x (http://jira-prod.radcom.co.il:8080/s/d41d8cd98f00b204e9800998ecf8427e-CDN/ea4dbb/76001/4d9defc504db757cbea4102b4f3a49a3/2.1.5/_/download/resources/com.atlassian.jira.plugins.jira-editor-plugin:tinymce/tinymce.js?batch=false:2:13434)

[slothstronaut]

Could you find the source of the error or even found a fix for it? 

[Vinu]

Hi @tsahi / @slothstronaut 

If you had this error, did any resolution work out.?? any idea on why this issue might pop?