message: fixed build (row question key and Math.random);
diff: @@ -98,7 +98,7 @@ export class SurveyRow extends SurveyElementBase<any, any> {
  }
  protected createElement(element: IElement, elementIndex?: number): JSX.Element {
  - const index = elementIndex ? "-" + elementIndex : Math.random();
  + const index = elementIndex ? "-" + elementIndex : 0;
  var elementType = element.getType();
  if (!ReactElementFactory.Instance.isElementRegistered(elementType)) {
  elementType = "question";
  