startup javascript exception with GWTP

After migrating from smartgwtpro.jar in the smartgwtpro-4.0p 2014-01-22 nightly build to smartgwtpro.jar in the 2014-02-02 nightly build, a javascript exception occurs soon after startup, with signature below. I understand the desire for standalone simple reproduceable code but this is deeply embedded and am looking for clues as to what might have changed in such a short time between the two loads. Any hints would be appreciated. This also uses GWTP version 0.7 and GWT version 2.5.1.

com.google.gwt.core.client.JavaScriptException: (TypeError) @com.smartgwt.client.widgets.BaseWidget::draw()([]): _29 is undefined
at com.google.gwt.dev.shell.BrowserChannelServer.invo keJavascript(BrowserChannelServer.java:249)
at com.google.gwt.dev.shell.ModuleSpaceOOPHM.doInvoke (ModuleSpaceOOPHM.java:136)
at com.google.gwt.dev.shell.ModuleSpace.invokeNative( ModuleSpace.java:571)
at com.google.gwt.dev.shell.ModuleSpace.invokeNativeV oid(ModuleSpace.java:299)
at com.google.gwt.dev.shell.JavaScriptHost.invokeNati veVoid(JavaScriptHost.java:107)
at com.smartgwt.client.widgets.BaseWidget.draw(BaseWi dget.java)
at com.smartgwt.client.widgets.BaseWidget.getElement( BaseWidget.java:340)
at com.smartgwt.client.widgets.BaseWidget.getElement( BaseWidget.java:312)
at com.google.gwt.user.client.ui.ComplexPanel.add(Com plexPanel.java:94)
at com.google.gwt.user.client.ui.AbsolutePanel.add(Ab solutePanel.java:97)
at com.gwtplatform.mvp.client.RootPresenter$RootView. setInSlot(RootPresenter.java:98)
at com.gwtplatform.mvp.client.PresenterWidget.setInSl ot(PresenterWidget.java:351)
at com.gwtplatform.mvp.client.PresenterWidget.setInSl ot(PresenterWidget.java:313)
at com.gwtplatform.mvp.client.RootPresenter.onRevealR ootContent(RootPresenter.java:174)
at com.gwtplatform.mvp.client.proxy.RevealRootContent Event.dispatch(RevealRootContentEvent.java:75)
at com.gwtplatform.mvp.client.proxy.RevealRootContent Event.dispatch(RevealRootContentEvent.java:1)
at com.google.gwt.event.shared.GwtEvent.dispatch(GwtE vent.java:1)
at com.google.web.bindery.event.shared.EventBus.dispa tchEvent(EventBus.java:40)
at com.google.web.bindery.event.shared.SimpleEventBus .doFire(SimpleEventBus.java:193)
at com.google.web.bindery.event.shared.SimpleEventBus .fireEventFromSource(SimpleEventBus.java:96)
at com.gwtplatform.mvp.client.PresenterWidget.fireEve nt(PresenterWidget.java:254)
at com.gwtplatform.mvp.client.proxy.RevealRootContent Event.fire(RevealRootContentEvent.java:51)
at com.alu.tat.client.presenter.TicketPagePresenter.r evealInParent(TicketPagePresenter.java:124)
at com.gwtplatform.mvp.client.Presenter.forceReveal(P resenter.java:189)
at com.gwtplatform.mvp.client.proxy.ProxyPlaceAbstrac t.manualReveal(ProxyPlaceAbstract.java:227)
at com.gwtplatform.mvp.client.proxy.ProxyPlaceAbstrac t$3$1.execute(ProxyPlaceAbstract.java:213)
at com.google.gwt.core.client.impl.SchedulerImpl$Task $.executeScheduled$(SchedulerImpl.java:50)
at com.google.gwt.core.client.impl.SchedulerImpl.runS cheduledTasks(SchedulerImpl.java:180)
at com.google.gwt.core.client.impl.SchedulerImpl.flus hPostEventPumpCommands(SchedulerImpl.java:347)
at com.google.gwt.core.client.impl.SchedulerImpl$Flus her.execute(SchedulerImpl.java:78)
at com.google.gwt.core.client.impl.SchedulerImpl.exec ute(SchedulerImpl.java:138)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Nativ e Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Native MethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(De legatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at com.google.gwt.dev.shell.MethodAdaptor.invoke(Meth odAdaptor.java:103)
at com.google.gwt.dev.shell.MethodDispatch.invoke(Met hodDispatch.java:71)
at com.google.gwt.dev.shell.OophmSessionHandler.invok e(OophmSessionHandler.java:172)
at com.google.gwt.dev.shell.BrowserChannelServer.reac tToMessagesWhileWaitingForReturn(BrowserChannelSer ver.java:338)
at com.google.gwt.dev.shell.BrowserChannelServer.invo keJavascript(BrowserChannelServer.java:219)
at com.google.gwt.dev.shell.ModuleSpaceOOPHM.doInvoke (ModuleSpaceOOPHM.java:136)
at com.google.gwt.dev.shell.ModuleSpace.invokeNative( ModuleSpace.java:571)
at com.google.gwt.dev.shell.ModuleSpace.invokeNativeO bject(ModuleSpace.java:279)
at com.google.gwt.dev.shell.JavaScriptHost.invokeNati veObject(JavaScriptHost.java:91)
at com.google.gwt.core.client.impl.Impl.apply(Impl.ja va)
at com.google.gwt.core.client.impl.Impl.entry0(Impl.j ava:242)
at sun.reflect.GeneratedMethodAccessor44.invoke(Unkno wn Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(De legatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at com.google.gwt.dev.shell.MethodAdaptor.invoke(Meth odAdaptor.java:103)
at com.google.gwt.dev.shell.MethodDispatch.invoke(Met hodDispatch.java:71)
at com.google.gwt.dev.shell.OophmSessionHandler.invok e(OophmSessionHandler.java:172)
at com.google.gwt.dev.shell.BrowserChannelServer.reac tToMessages(BrowserChannelServer.java:293)
at com.google.gwt.dev.shell.BrowserChannelServer.proc essConnection(BrowserChannelServer.java:547)
at com.google.gwt.dev.shell.BrowserChannelServer.run( BrowserChannelServer.java:364)
at java.lang.Thread.run(Thread.java:662)