diff --git a/reactor/Core/src/jetbrains/mps/logic/reactor/core/internal/ControllerImpl.kt b/reactor/Core/src/jetbrains/mps/logic/reactor/core/internal/ControllerImpl.kt
index b7361c35..9af17de1 100644
--- a/reactor/Core/src/jetbrains/mps/logic/reactor/core/internal/ControllerImpl.kt
+++ b/reactor/Core/src/jetbrains/mps/logic/reactor/core/internal/ControllerImpl.kt
@@ -94,10 +94,7 @@ internal class ControllerImpl (
     }
 
     override fun reactivate(occ: Occurrence): FeedbackStatus {
-        // fixme: leave one of these, ensure impl is present on both reactor & mps levels
-        trace.activate(occ)
         trace.reactivateIncremental(occ)
-
         return state.processActivated(this, occ, NORMAL())
     }
 
diff --git a/reactor/Core/src/jetbrains/mps/logic/reactor/evaluation/EvaluationTrace.java b/reactor/Core/src/jetbrains/mps/logic/reactor/evaluation/EvaluationTrace.java
index 4d06c75b..e4d33c7f 100644
--- a/reactor/Core/src/jetbrains/mps/logic/reactor/evaluation/EvaluationTrace.java
+++ b/reactor/Core/src/jetbrains/mps/logic/reactor/evaluation/EvaluationTrace.java
@@ -33,6 +33,8 @@ public interface EvaluationTrace {
 
     default void reactivate(ConstraintOccurrence occurrence) {}
 
+    default void reactivateIncremental(ConstraintOccurrence occurrence) {}
+
     default void suspend(ConstraintOccurrence occurrence) {}
 
     default void discard(ConstraintOccurrence occurrence) {}
@@ -55,7 +57,5 @@ public interface EvaluationTrace {
 
     default void invalidate(RuleMatch ruleMatch) {}
 
-    default void reactivateIncremental(ConstraintOccurrence occurrence) {}
-
     default void potentialMatch(ConstraintOccurrence occurrence, Rule rule) {}
 }