diff --git a/src/main/scala/scim/components/Simulation.scala b/src/main/scala/scim/components/Simulation.scala
index a216441..f9dab7b 100644
--- a/src/main/scala/scim/components/Simulation.scala
+++ b/src/main/scala/scim/components/Simulation.scala
@@ -63,8 +63,8 @@ class Simulation(config: Configuration) {
       val group = input._1
       val truthGroup = group.getParentOrGroup // make sure the correct ground truth gets passed
       val groupList = input._2
-      // overwrite truth with value from configuration if set for this time and group
-      val prevTruth = if(!configTruths.isEmpty && configTruths.get.contains(truthGroup)) configTruths.get(truthGroup) else PrevTruths(truthGroup)
+      // overwrite truth with value from configuration if set for a non child group at this time (children just get results of their parent)
+      val prevTruth = if(group.parent.isEmpty && !configTruths.isEmpty && configTruths.get.contains(group)) configTruths.get(group) else PrevTruths(truthGroup)
       groupList.foreach(element => {
         val subGroup = element._1
         debugf(DebugType.DEBUG, "simGroups: Time: %s | Cell: %s | Group: %s | Groupelement: %s", time.toString, cell.toString, group.toString, element._1.name)