diff --git a/pkg/rtc/mediatracksubscriptions.go b/pkg/rtc/mediatracksubscriptions.go
index 88a9df90f..b20bf6f0f 100644
--- a/pkg/rtc/mediatracksubscriptions.go
+++ b/pkg/rtc/mediatracksubscriptions.go
@@ -113,6 +113,8 @@ func (t *MediaTrackSubscriptions) AddSubscriber(sub types.LocalParticipant, wr *
 	case livekit.TrackType_VIDEO:
 		rtcpFeedback = t.params.SubscriberConfig.RTCPFeedback.Video
 		maxTrack = t.params.ReceiverConfig.PacketBufferSizeVideo
+	default:
+		t.params.Logger.Warnw("unexpected track type", nil, "kind", t.params.MediaTrack.Kind())
 	}
 	codecs := wr.Codecs()
 	for _, c := range codecs {
diff --git a/pkg/sfu/sequencer.go b/pkg/sfu/sequencer.go
index 5ba788b9c..1e08ef9ce 100644
--- a/pkg/sfu/sequencer.go
+++ b/pkg/sfu/sequencer.go
@@ -119,6 +119,10 @@ type sequencer struct {
 }
 
 func newSequencer(size int, maybeSparse bool, logger logger.Logger) *sequencer {
+	if size == 0 {
+		return nil
+	}
+
 	s := &sequencer{
 		size:      size,
 		startTime: time.Now().UnixNano(),