Message View: Exception when creating a self-message

The following exception occurred when creating a self-message (attached is the message view screenshot):

Exception in thread "Animation Thread" java.lang.IndexOutOfBoundsException: Index: 1, Size: 0 at java.util.ArrayList.RangeCheck(ArrayList.java:547) at java.util.ArrayList.get(ArrayList.java:322) at ca.mcgill.sel.ram.ui.views.message.LifelineView.getFragmentContainerAt(LifelineView.java:730) at ca.mcgill.sel.ram.ui.handler.message.impl.LifelineViewHandler.processTapAndHoldEvent(LifelineViewHandler.java:107) at ca.mcgill.ram.ui.handler.BaseHandler.processGestureEvent(BaseHandler.java:93) at ca.mcgill.sel.ram.ui.views.message.LifelineView$Spacer$1.processGestureEvent(LifelineView.java:127) at org.mt4j.input.GestureEventSupport.fire(GestureEventSupport.java:184) at org.mt4j.input.GestureEventSupport.fireGestureEvt(GestureEventSupport.java:169) at org.mt4j.components.MTComponent.processGestureEvent(MTComponent.java:3033) at org.mt4j.input.inputProcessors.componentProcessors.AbstractComponentProcessor.fireGestureEvent(AbstractComponentProcessor.java:236) at org.mt4j.input.inputProcessors.componentProcessors.AbstractCursorProcessor.fireGestureEvent(AbstractCursorProcessor.java:169) at org.mt4j.input.inputProcessors.componentProcessors.tapAndHoldProcessor.TapAndHoldProcessor.pre(TapAndHoldProcessor.java:155) at org.mt4j.input.inputProcessors.componentProcessors.tapAndHoldProcessor.TapAndHoldProcessor.processAction(TapAndHoldProcessor.java:342) at org.mt4j.AbstractMTApplication.runApplication(AbstractMTApplication.java:327) at org.mt4j.AbstractMTApplication.draw(AbstractMTApplication.java:272) at processing.core.PApplet.handleDraw(PApplet.java:1603) at processing.core.PApplet.run(PApplet.java:1502) at java.lang.Thread.run(Thread.java:695)

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