diff --git a/egs2/chime8_task1/README.md b/egs2/chime8_task1/README.md
index 64b3011ee51..b1d06f9169c 100644
--- a/egs2/chime8_task1/README.md
+++ b/egs2/chime8_task1/README.md
@@ -52,13 +52,16 @@ significantly complicates speaker counting.
 
 
 ```bash
+###############################################################################
+### tcpWER for all Scenario ###################################################
+###############################################################################
 +-----+--------------+--------------+----------+----------+--------------+-------------+-----------------+------------------+------------------+------------------+
 |     | session_id   |   error_rate |   errors |   length |   insertions |   deletions |   substitutions |   missed_speaker |   falarm_speaker |   scored_speaker |
 |-----+--------------+--------------+----------+----------+--------------+-------------+-----------------+------------------+------------------+------------------|
-| dev | chime6       |     0.825381 |    52070 |    63086 |        12747 |       29466 |            9857 |                0 |                5 |                8 |
-| dev | mixer6       |     0.287729 |    26621 |    92521 |         4882 |        8809 |           12930 |                0 |               24 |               70 |
-| dev | dipco        |     0.674161 |    11574 |    17168 |         3066 |        5563 |            2945 |                0 |                2 |                8 |
-| dev | notsofar1    |     0.508768 |    90660 |   178195 |        14872 |       55195 |           20593 |              105 |                7 |              592 |
+| dev | chime6       |     0.887079 |    54417 |    61344 |        14542 |       29683 |           10192 |                0 |                4 |                8 |
+| dev | mixer6       |     0.292346 |    26317 |    90020 |         4656 |        9079 |           12582 |                0 |               23 |               70 |
+| dev | dipco        |     0.984403 |    16157 |    16413 |         5008 |        8507 |            2642 |                3 |                0 |                8 |
+| dev | notsofar1    |     0.462402 |    70035 |   151459 |        13116 |       37324 |           19595 |              120 |                5 |              612 |
 +-----+--------------+--------------+----------+----------+--------------+-------------+-----------------+------------------+------------------+------------------+
 ###############################################################################
 ### Macro-Averaged tcpWER for across all Scenario (Ranking Metric) ############
@@ -66,7 +69,7 @@ significantly complicates speaker counting.
 +-----+--------------+
 |     |   error_rate |
 |-----+--------------|
-| dev |      0.57401 |
+| dev |     0.656558 |
 +-----+--------------+
 ```
 
diff --git a/egs2/chime8_task1/asr1/local/gss2lhotse.py b/egs2/chime8_task1/asr1/local/gss2lhotse.py
index 4c6d526c649..7a3e7417be0 100644
--- a/egs2/chime8_task1/asr1/local/gss2lhotse.py
+++ b/egs2/chime8_task1/asr1/local/gss2lhotse.py
@@ -22,8 +22,7 @@ def get_new_manifests(input_dir, output_filename):
     id2wav = {Path(w).stem: w for w in wavs}
     recordings = []
     supervisions = []
-    for c_k in segcuts.data.keys():
-        c_cut = segcuts.data[c_k]
+    for c_cut in segcuts.data:
 
         speaker = c_cut.supervisions[0].speaker
         gss_id = (