--

debug/engine.js

@@ -3371,7 +3371,8 @@ var tslib = {__extends: __extends,__assign: __assign,__rest: __rest,__decorate:
 	        while (node.parent) {
 	            var child = node;
 	            node = node.parent;
-	            path.unshift(node.getChildIndex(child));
+	            var index = node.children.indexOf(child);
+	            path.unshift(index);
 	            if (node === untilNode) {
 	                break;
 	            }