diff --git a/src/main/scala/scim/components/Simulation.scala b/src/main/scala/scim/components/Simulation.scala
index 05f31ba..d5830ff 100644
--- a/src/main/scala/scim/components/Simulation.scala
+++ b/src/main/scala/scim/components/Simulation.scala
@@ -69,9 +69,10 @@ class Simulation(config: Configuration) {
         // overwrite truth with value from configuration if this is the root group
         val prevTruth = if(subGroup.parent.isEmpty && !configTruths.isEmpty && configTruths.get.contains(subGroup)) {
           configTruths.get(subGroup)
-          // make sure parent actually calculates a ground truth
+          // make sure parent actually calculates a ground truth and is not a sensor child
         } else if(prevTruths.contains(subGroupParent) && subGroupParent.sensorParent.isEmpty) {
-          prevTruths(subGroupParent)
+          // pass the parents result of this tick instead of previous truth to child, to avoid lagging a tick behind
+          if(subGroup == subGroupParent) prevTruths(subGroup) else resultTruths(subGroupParent)
         } else {
           // this can happen if sensor parent has another sensor parent
           // TODO: A sensor with parent should not have children (warn in parser)