On Demand inaccessible with attached error - uncaught type error: Cannot read property 'lang' of und
UPDATE: Issue is resolved by upgrading to the April 2019 version of NPrinting.
If the issue persists after upgrade, it is due to your browser is keeping a cached copy of the older broken On Demand objects. Simply clear your Internet Browser cached to remove the cached On Demand objects.
Upgraded NPrinting server to Feb 2019 Initial Release and can no longer access on-demand reports from dashboards via the QlikView Access Point.
Error "uncaught type error, Cannot read property 'lang' of undefined" is discovered with investigating with F12 tools in IE or Chrome Developer Tools.
UPDATE: Issue is resolved by upgrading to the April 2019 version of NPrinting