Symptoms

When a non-admin users tries to look at a CIO roadmap, the page never finishes loading and stays at 100%

Steps to Reproduce

1. Login with a non admin user
2. Navigation bar type CIO roadmap and click on it
3. Should see the above screen

If you click on the developer tools, you will see the following error:

"Unexpected end of JSON Input"

Release

London, Madrid

Cause

On the roadmap_user_page there is a CIO Roadmap.  Opening this record, the "Panel Color Key" is null/empty and is causing the error for the user in question

Resolution

Setting the "Panel Color Key" field for the record will resolve the issue