Exception on attempt to launch Expression or Criteria Builders

Attempt to launch the Expression or Criteria Builders results in the following exception:

Caused by: java.lang.NullPointerException
at org.teiid82.sql.impl.visitor.SQLStringVisitorImpl.getSQLString(SQLStringVisitorImpl.java:23)
at org.teiid.designer.transformation.ui.builder.AbstractLanguageObjectBuilder.setOriginalSql(AbstractLanguageObjectBuilder.java:546)
at org.teiid.designer.transformation.ui.builder.AbstractLanguageObjectBuilder.setLanguageObject(AbstractLanguageObjectBuilder.java:510)
at org.teiid.designer.transformation.ui.builder.AbstractLanguageObjectBuilder.create(AbstractLanguageObjectBuilder.java:156)
at org.teiid.designer.transformation.ui.editors.sqleditor.SqlEditorPanel.getExpressionBuilder(SqlEditorPanel.java:1089)
at org.teiid.designer.transformation.ui.editors.sqleditor.SqlEditorPanel.showExpressionBuilder(SqlEditorPanel.java:1136)
at org.teiid.designer.transformation.ui.editors.sqleditor.SqlEditorPanelWrapper.showExpressionBuilder(SqlEditorPanelWrapper.java:123)
at org.teiid.designer.transformation.ui.editors.sqleditor.actions.LaunchExpressionBuilder.doRun(LaunchExpressionBuilder.java:50)