Unable to drop Kepware _System tags in Designer

The web quick client is able to read all Kepware/_System tags, however in the designer when I try to drop a _System tag, for example _System/_ActiveTagCount, I get a java.lang.NullPointerException.

stack

[code]java.lang.NullPointerException
at java.lang.String.startsWith(Unknown Source)
at java.lang.String.startsWith(Unknown Source)
at com.inductiveautomation.factorypmi.designer.workspace.DropHandler.createPath(DropHandler.java:822)
at com.inductiveautomation.factorypmi.designer.workspace.DropHandler.handleOPCDropped(DropHandler.java:767)
at com.inductiveautomation.factorypmi.designer.workspace.DropHandler.handleDrop(DropHandler.java:166)
at com.inductiveautomation.factorypmi.designer.workspace.WindowWorkspace.handleDrop(WindowWorkspace.java:739)
at com.inductiveautomation.ignition.designer.designable.InteractionLayer$DropHandler.drop(InteractionLayer.java:469)
at java.awt.dnd.DropTarget.drop(Unknown Source)
at sun.awt.dnd.SunDropTargetContextPeer.processDropMessage(Unknown Source)
at sun.awt.dnd.SunDropTargetContextPeer$EventDispatcher.dispatchDropEvent(Unknown Source)
at sun.awt.dnd.SunDropTargetContextPeer$EventDispatcher.dispatchEvent(Unknown Source)
at sun.awt.dnd.SunDropTargetEvent.dispatch(Unknown Source)
at java.awt.Component.dispatchEventImpl(Unknown Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(Unknown Source)
at java.awt.LightweightDispatcher.retargetMouseEvent(Unknown Source)
at java.awt.LightweightDispatcher.processDropTargetEvent(Unknown Source)
at java.awt.LightweightDispatcher.dispatchEvent(Unknown Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)
at java.awt.Window.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(Unknown Source)
at java.awt.EventQueue.dispatchEventImpl(Unknown Source)
at java.awt.EventQueue.access$500(Unknown Source)
at java.awt.EventQueue$3.run(Unknown Source)
at java.awt.EventQueue$3.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(Unknown Source)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(Unknown Source)
at java.awt.EventQueue$4.run(Unknown Source)
at java.awt.EventQueue$4.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(Unknown Source)
at java.awt.EventQueue.dispatchEvent(Unknown Source)
at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.run(Unknown Source)

Ignition v7.7.4 (b2015033012)
Java: Oracle Corporation 1.8.0_40
[/code]

My bad, I was dropping an OPC tag onto the canvas instead of into the Tag Browser. I was expecting a label element to be dropped onto the canvas…