TypeError: planItem.getWorkflowInfo is not a function

I've stumped IBM support and there is no mention of this error on the entire Internet. 2.0.0.2 ifix8

This happens only in Developers Taskboard view. I am aware of other errors that can occur in Developers Taskboard view, such as "Error: Assertion Failed", but I have already looked for those things, listed here:

https://jazz.net/forum/questions/60346/solution-found-for-three-web-client-errors

The error occurs only with one team's plans. All other plans owned by other teams work fine. Plans owned by this specific team fail.
The Work Breakdown and all other plan views work fine, except for Developers Taskboard. As soon as Developers Taskboard is chosen, an error is thrown.

In Firefox:
TypeError: planItem.getWorkflowInfo is not a function

In Eclipse:
org.mozilla.javascript.EcmaError: TypeError: Cannot find function getWorkflowInfo. (TaskboardViewMode.js#441)
    at org.mozilla.javascript.ScriptRuntime.constructError(ScriptRuntime.java:3350)
    at org.mozilla.javascript.ScriptRuntime.constructError(ScriptRuntime.java:3340)
    at org.mozilla.javascript.ScriptRuntime.typeError(ScriptRuntime.java:3356)
    at org.mozilla.javascript.ScriptRuntime.typeError1(ScriptRuntime.java:3368)
    at org.mozilla.javascript.ScriptRuntime.notFunctionError(ScriptRuntime.java:3428)
    at org.mozilla.javascript.ScriptRuntime.getPropFunctionAndThis(ScriptRuntime.java:2052)
    at org.mozilla.javascript.optimizer.OptRuntime.callProp0(OptRuntime.java:117)
    at org.mozilla.javascript.gen.c45._c30(TaskboardViewMode.js:441)
    at org.mozilla.javascript.gen.c45.call(TaskboardViewMode.js)
    at org.mozilla.javascript.optimizer.OptRuntime.call1(OptRuntime.java:66)
    at org.mozilla.javascript.gen.c45._c29(TaskboardViewMode.js:422)
    at org.mozilla.javascript.gen.c45.call(TaskboardViewMode.js)
    at org.mozilla.javascript.ScriptRuntime.applyOrCall(ScriptRuntime.java:2234)
    at org.mozilla.javascript.BaseFunction.execIdCall(BaseFunction.java:257)
    at org.mozilla.javascript.IdFunctionObject.call(IdFunctionObject.java:127)
    at org.mozilla.javascript.optimizer.OptRuntime.callN(OptRuntime.java:86)
    at org.mozilla.javascript.gen.c1._c126(dojo.js.uncompressed.js:2914)
    at org.mozilla.javascript.gen.c1.call(dojo.js.uncompressed.js)
    at org.mozilla.javascript.optimizer.OptRuntime.callN(OptRuntime.java:86)
    at org.mozilla.javascript.gen.c45._c28(TaskboardViewMode.js:421)
    at org.mozilla.javascript.gen.c45.call(TaskboardViewMode.js)
    at org.mozilla.javascript.optimizer.OptRuntime.call2(OptRuntime.java:76)
    at org.mozilla.javascript.gen.c42._c6(TreeViewMode.js:72)
    at org.mozilla.javascript.gen.c42.call(TreeViewMode.js)
    at org.mozilla.javascript.ScriptRuntime.applyOrCall(ScriptRuntime.java:2234)
    at org.mozilla.javascript.BaseFunction.execIdCall(BaseFunction.java:257)
    at org.mozilla.javascript.IdFunctionObject.call(IdFunctionObject.java:127)
    at org.mozilla.javascript.optimizer.OptRuntime.callN(OptRuntime.java:86)
    at org.mozilla.javascript.gen.c1._c126(dojo.js.uncompressed.js:2914)
    at org.mozilla.javascript.gen.c1.call(dojo.js.uncompressed.js)
    at org.mozilla.javascript.optimizer.OptRuntime.callN(OptRuntime.java:86)
    at org.mozilla.javascript.gen.c42._c5(TreeViewMode.js:62)
    at org.mozilla.javascript.gen.c42.call(TreeViewMode.js)
    at org.mozilla.javascript.optimizer.OptRuntime.call2(OptRuntime.java:76)
    at org.mozilla.javascript.gen.c41._c10(CommonViewMode.js:126)
    at org.mozilla.javascript.gen.c41.call(CommonViewMode.js)
    at org.mozilla.javascript.ContextFactory.doTopCall(ContextFactory.java:393)
    at org.mozilla.javascript.ScriptRuntime.doTopCall(ScriptRuntime.java:2834)
    at org.mozilla.javascript.gen.c41.call(CommonViewMode.js)
    at org.mozilla.javascript.ScriptableObject.callMethod(ScriptableObject.java:1831)
    at com.ibm.team.apt.internal.common.scripting.util.JSUtils.callMethod(JSUtils.java:89)
    at com.ibm.team.apt.internal.ide.ui.scripting.interfaces.ViewModeTransformerProxy.rebuildModel(ViewModeTransformerProxy.java:60)
    at com.ibm.team.apt.internal.ide.ui.common.structure.JavaScriptPlanModelTransformer$9.run(JavaScriptPlanModelTransformer.java:170)
    at com.ibm.team.apt.internal.ide.ui.common.structure.JavaScriptPlanModelTransformer$9.run(JavaScriptPlanModelTransformer.java:1)
    at com.ibm.team.apt.internal.common.scripting.environment.AbstractScriptEnvironment.execute(AbstractScriptEnvironment.java:62)
    at com.ibm.team.apt.internal.ide.ui.common.structure.JavaScriptPlanModelTransformer.refreshModel(JavaScriptPlanModelTransformer.java:165)
    at com.ibm.team.apt.internal.ide.ui.common.model.OutlineModel$3.run(OutlineModel.java:223)
    at com.ibm.team.apt.internal.ide.ui.common.model.OutlineModel$3.run(OutlineModel.java:1)
    at com.ibm.team.apt.internal.ide.ui.common.model.OutlineModel.updateModel(OutlineModel.java:377)
    at com.ibm.team.apt.internal.ide.ui.common.model.OutlineModel.refresh(OutlineModel.java:214)
    at com.ibm.team.apt.internal.ide.ui.common.model.OutlineModel.setInput(OutlineModel.java:123)
    at com.ibm.team.apt.internal.ide.ui.editor.outliner.IterationPlanViewModel.setInput(IterationPlanViewModel.java:66)
    at com.ibm.team.apt.internal.ide.ui.editor.OutlinePage$9.doRun(OutlinePage.java:1427)
    at com.ibm.team.apt.internal.ide.ui.editor.OutlinePage$ViewModelSafeRunnable.run(OutlinePage.java:2437)
    at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)
    at com.ibm.team.apt.internal.ide.ui.editor.OutlinePage.initializeOutliner(OutlinePage.java:1424)
    at com.ibm.team.apt.internal.ide.ui.editor.OutlinePage.setResolvedIterationPlan(OutlinePage.java:1073)
    at com.ibm.team.apt.internal.ide.ui.editor.OutlinePage.access$22(OutlinePage.java:1048)
    at com.ibm.team.apt.internal.ide.ui.editor.OutlinePage$4$1.run(OutlinePage.java:958)
    at com.ibm.team.apt.internal.ide.ui.util.UI$1.run(UI.java:49)
    at org.eclipse.ui.internal.UILockListener.doPendingWork(UILockListener.java:164)
    at org.eclipse.ui.internal.UISynchronizer$3.run(UISynchronizer.java:158)
    at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:35)
    at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:134)
    at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:4041)
    at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3660)
    at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.java:2640)
    at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2604)
    at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:2438)
    at org.eclipse.ui.internal.Workbench$7.run(Workbench.java:671)
    at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
    at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:664)
    at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
    at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:115)
    at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196)
    at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:110)
    at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:79)
    at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:369)
    at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:179)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:620)
    at org.eclipse.equinox.launcher.Main.basicRun(Main.java:575)
    at org.eclipse.equinox.launcher.Main.run(Main.java:1408)
    at org.eclipse.equinox.launcher.Main.main(Main.java:1384)