diff --git a/selfdrive/ui/replay/logreader.cc b/selfdrive/ui/replay/logreader.cc
index 4dad9f71e02ed9..25f3b399c790e6 100644
--- a/selfdrive/ui/replay/logreader.cc
+++ b/selfdrive/ui/replay/logreader.cc
@@ -77,7 +77,7 @@ bool LogReader::load(const std::string &file) {
     }
   }
 
-  // insert custom eidx events for publish frames.
+  // insert custom EncodeIdx events for publish frames.
   for (auto cam : ALL_CAMERAS) {
     for (auto [frame_id, val] : eidx_map[cam]) {
       auto [e, eidx] = val;
diff --git a/selfdrive/ui/replay/replay.cc b/selfdrive/ui/replay/replay.cc
index 699457db9d66fe..a153edb86fd816 100644
--- a/selfdrive/ui/replay/replay.cc
+++ b/selfdrive/ui/replay/replay.cc
@@ -221,7 +221,7 @@ void Replay::stream() {
           if (evt->which == cereal::Event::ROAD_ENCODE_IDX) {
             auto idx = evt->event.getRoadEncodeIdx();
             auto &seg = segments_[idx.getSegmentNum()];
-            if (seg && seg->isLoaded()) {
+            if (seg && seg->isLoaded() && seg->frames[RoadCam]) {
               auto &frm = seg->frames[RoadCam];
               if (vipc_server == nullptr) {
                 cl_device_id device_id = cl_get_device_id(CL_DEVICE_TYPE_DEFAULT);