I get an error message when adding an epic to new project.

[Roeland de Vries]

This is a new project with nothing in it and the epic is the 1st thing I want to add to the project. The error message is below: 

Could it be related to a test project that was removed?  

Details
Exception: Unable to get property 'scrollHeight' of undefined or null reference
Resource: https://jira.pncc.govt.nz/s/2c1263afcd749544a9374bd64b5ab7ea-T/5zaev9/802002/7463126c8886aeab4efae21cfd9869f8/094909ffee341a7091e1e71be148f858/_/download/contextbatch/js/gh-rapid-work,jira.project.sidebar,jira.general,jira.global,atl.general,com.atlassian.jira.projects.sidebar.init,greenhopper-rapid-non-gadget,-_super/batch.js?agile_global_admin_condition=true&baseurl-check-resources=true&flexboards=true&healthcheck-resources=true&jag=true&jaguser=true&locale=en-NZ&whisper-enabled=true
Line: 6665
Column: 10460
Environment
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/64.0.3282.140 Safari/537.36 Edge/17.17134
Stack trace
TypeError: Unable to get property 'scrollHeight' of undefined or null reference
at GH.EpicView.scrollToBottom (https://jira.pncc.govt.nz/s/2c1263afcd749544a9374bd64b5ab7ea-T/5zaev9/802002/7463126c8886aeab4efae21cfd9869f8/094909ffee341a7091e1e71be148f858/_/download/contextbatch/js/gh-rapid-work,jira.project.sidebar,jira.general,jira.global,atl.general,com.atlassian.jira.projects.sidebar.init,greenhopper-rapid-non-gadget,-_super/batch.js?agile_global_admin_condition=true&baseurl-check-resources=true&flexboards=true&healthcheck-resources=true&jag=true&jaguser=true&locale=en-NZ&whisper-enabled=true:6665:1046...)
at F._showCreatedEpicsMessage (https://jira.pncc.govt.nz/s/2c1263afcd749544a9374bd64b5ab7ea-T/5zaev9/802002/7463126c8886aeab4efae21cfd9869f8/094909ffee341a7091e1e71be148f858/_/download/contextbatch/js/gh-rapid-work,jira.project.sidebar,jira.general,jira.global,atl.general,com.atlassian.jira.projects.sidebar.init,greenhopper-rapid-non-gadget,-_super/batch.js?agile_global_admin_condition=true&baseurl-check-resources=true&flexboards=true&healthcheck-resources=true&jag=true&jaguser=true&locale=en-NZ&whisper-enabled=true:2971:9654)
at Anonymous function (https://jira.pncc.govt.nz/s/2c1263afcd749544a9374bd64b5ab7ea-T/5zaev9/802002/7463126c8886aeab4efae21cfd9869f8/094909ffee341a7091e1e71be148f858/_/download/contextbatch/js/gh-rapid-work,jira.project.sidebar,jira.general,jira.global,atl.general,com.atlassian.jira.projects.sidebar.init,greenhopper-rapid-non-gadget,-_super/batch.js?agile_global_admin_condition=true&baseurl-check-resources=true&flexboards=true&healthcheck-resources=true&jag=true&jaguser=true&locale=en-NZ&whisper-enabled=true:2971:9456)
at c (https://jira.pncc.govt.nz/s/17e4db80952ef1dcafcefc192fcf3a6a-CDN/5zaev9/802002/7463126c8886aeab4efae21cfd9869f8/bab6f2ece3d36e9b4fd67b874e8c84e4/_/download/contextbatch/js/_super/batch.js?locale=en-NZ:40:22885)
at f.fireWith (https://jira.pncc.govt.nz/s/17e4db80952ef1dcafcefc192fcf3a6a-CDN/5zaev9/802002/7463126c8886aeab4efae21cfd9869f8/bab6f2ece3d36e9b4fd67b874e8c84e4/_/download/contextbatch/js/_super/batch.js?locale=en-NZ:40:23594)
at a[] (https://jira.pncc.govt.nz/s/17e4db80952ef1dcafcefc192fcf3a6a-CDN/5zaev9/802002/7463126c8886aeab4efae21cfd9869f8/bab6f2ece3d36e9b4fd67b874e8c84e4/_/download/contextbatch/js/_super/batch.js?locale=en-NZ:40:24610)
at c (https://jira.pncc.govt.nz/s/17e4db80952ef1dcafcefc192fcf3a6a-CDN/5zaev9/802002/7463126c8886aeab4efae21cfd9869f8/bab6f2ece3d36e9b4fd67b874e8c84e4/_/download/contextbatch/js/_super/batch.js?locale=en-NZ:40:22885)
at f.add (https://jira.pncc.govt.nz/s/17e4db80952ef1dcafcefc192fcf3a6a-CDN/5zaev9/802002/7463126c8886aeab4efae21cfd9869f8/bab6f2ece3d36e9b4fd67b874e8c84e4/_/download/contextbatch/js/_super/batch.js?locale=en-NZ:40:23002)
at Anonymous function (https://jira.pncc.govt.nz/s/17e4db80952ef1dcafcefc192fcf3a6a-CDN/5zaev9/802002/7463126c8886aeab4efae21cfd9869f8/bab6f2ece3d36e9b4fd67b874e8c84e4/_/download/contextbatch/js/_super/batch.js?locale=en-NZ:40:24256)
at c (https://jira.pncc.govt.nz/s/17e4db80952ef1dcafcefc192fcf3a6a-CDN/5zaev9/802002/7463126c8886aeab4efae21cfd9869f8/bab6f2ece3d36e9b4fd67b874e8c84e4/_/download/contextbatch/js/_super/batch.js?locale=en-NZ:40:22885)