diff --git a/WickedEngine/wiScene.cpp b/WickedEngine/wiScene.cpp
index 200fc086f..c12e33ce4 100644
--- a/WickedEngine/wiScene.cpp
+++ b/WickedEngine/wiScene.cpp
@@ -1525,14 +1525,16 @@ namespace wiScene
 
 		// Gather all descendants in the hierarchy:
 		std::unordered_map<Entity, size_t> descendants;
-		descendants[entity] = descendants.size();
+		size_t prefix = descendants.size();
+		descendants[entity] = prefix;
 		for (size_t i = 0; i < hierarchy.GetCount(); ++i)
 		{
 		    const HierarchyComponent& hier = hierarchy[i];
 			if (descendants.count(hier.parentID) != 0)
 			{
 			    Entity child = hierarchy.GetEntity(i);
-			    descendants[child] = descendants.size();
+			    prefix = descendants.size();
+			    descendants[child] = prefix;
 			    Entity_Serialize(archive, child);
 			}
 		}
diff --git a/WickedEngine/wiVersion.cpp b/WickedEngine/wiVersion.cpp
index 6816ba34d..4526abecb 100644
--- a/WickedEngine/wiVersion.cpp
+++ b/WickedEngine/wiVersion.cpp
@@ -9,7 +9,7 @@ namespace wiVersion
 	// minor features, major updates, breaking API changes
 	const int minor = 49;
 	// minor bug fixes, alterations, refactors, updates
-	const int revision = 15;
+	const int revision = 16;
 
 	const std::string version_string = std::to_string(major) + "." + std::to_string(minor) + "." + std::to_string(revision);