diff --git a/node/consensus/data/main_data_loop.go b/node/consensus/data/main_data_loop.go
index a8c9372..afc7567 100644
--- a/node/consensus/data/main_data_loop.go
+++ b/node/consensus/data/main_data_loop.go
@@ -158,7 +158,7 @@ func (e *DataClockConsensusEngine) runLoop() {
 					}
 					e.frameProverTriesMx.Unlock()
 
-					e.dataTimeReel.Insert(nextFrame, false)
+					e.dataTimeReel.Insert(nextFrame, true)
 
 					if err = e.publishProof(nextFrame); err != nil {
 						e.logger.Error("could not publish", zap.Error(err))
@@ -268,7 +268,7 @@ func (e *DataClockConsensusEngine) runLoop() {
 						}
 						e.frameProverTriesMx.Unlock()
 
-						e.dataTimeReel.Insert(nextFrame, false)
+						e.dataTimeReel.Insert(nextFrame, true)
 
 						if err = e.publishProof(nextFrame); err != nil {
 							e.logger.Error("could not publish", zap.Error(err))
diff --git a/node/consensus/master/master_clock_consensus_engine.go b/node/consensus/master/master_clock_consensus_engine.go
index 8550738..5c31e1e 100644
--- a/node/consensus/master/master_clock_consensus_engine.go
+++ b/node/consensus/master/master_clock_consensus_engine.go
@@ -51,9 +51,7 @@ type MasterClockConsensusEngine struct {
 	syncingTarget    []byte
 	engineMx         sync.Mutex
 	seenFramesMx     sync.Mutex
-	historicFramesMx sync.Mutex
 	seenFrames       []*protobufs.ClockFrame
-	historicFrames   []*protobufs.ClockFrame
 
 	clockStore                  store.ClockStore
 	masterTimeReel              *qtime.MasterTimeReel
@@ -185,14 +183,6 @@ func (e *MasterClockConsensusEngine) Start() <-chan error {
 		panic(err)
 	}
 
-	frame, err := e.masterTimeReel.Head()
-	if err != nil {
-		panic(err)
-	}
-
-	e.logger.Info("building historic frame cache")
-	e.buildHistoricFrameCache(frame)
-
 	go func() {
 		for {
 			select {
@@ -360,43 +350,6 @@ func (
 	return e.frameChan
 }
 
-func (e *MasterClockConsensusEngine) buildHistoricFrameCache(
-	latestFrame *protobufs.ClockFrame,
-) {
-	e.historicFrames = []*protobufs.ClockFrame{}
-
-	if latestFrame.FrameNumber != 0 {
-		min := uint64(0)
-		if latestFrame.FrameNumber-255 > min && latestFrame.FrameNumber > 255 {
-			min = latestFrame.FrameNumber - 255
-		}
-
-		iter, err := e.clockStore.RangeMasterClockFrames(
-			e.filter,
-			min,
-			latestFrame.FrameNumber-1,
-		)
-		if err != nil {
-			panic(err)
-		}
-
-		for iter.First(); iter.Valid(); iter.Next() {
-			frame, err := iter.Value()
-			if err != nil {
-				panic(err)
-			}
-
-			e.historicFrames = append(e.historicFrames, frame)
-		}
-
-		if err = iter.Close(); err != nil {
-			panic(err)
-		}
-	}
-
-	e.historicFrames = append(e.historicFrames, latestFrame)
-}
-
 func (e *MasterClockConsensusEngine) addPeerManifestReport(
 	peerId []byte,
 	report *protobufs.SelfTestReport,
diff --git a/node/consensus/master/peer_messaging.go b/node/consensus/master/peer_messaging.go
index 65ada79..4eac311 100644
--- a/node/consensus/master/peer_messaging.go
+++ b/node/consensus/master/peer_messaging.go
@@ -35,7 +35,7 @@ func (e *MasterClockConsensusEngine) Sync(
 		panic(err)
 	}
 
-	if masterFrame.FrameNumber < from || len(e.historicFrames) == 0 {
+	if masterFrame.FrameNumber < from {
 		e.logger.Debug(
 			"peer asked for undiscovered frame",
 			zap.Uint64("frame_number", request.FramesRequest.FromFrameNumber),