diff --git a/notebooks/DynamicFF/Correct_DynamicFF_NBC.ipynb b/notebooks/DynamicFF/Correct_DynamicFF_NBC.ipynb
index c3a875eca5afdc2126b061d9fd67d037fd42b2b1..110b0ff3a49db5ce2512047e6058e9f863b6f50e 100644
--- a/notebooks/DynamicFF/Correct_DynamicFF_NBC.ipynb
+++ b/notebooks/DynamicFF/Correct_DynamicFF_NBC.ipynb
@@ -27,7 +27,7 @@
     "karabo_id = \"SPB_MIC_HPVX2\"  # karabo prefix of Shimadzu HPV-X2 devices\n",
     "\n",
     "# Database access parameters.\n",
-    "cal_db_interface = \"tcp://max-exfl-cal001:8021\"  # calibration DB interface to use\n",
+    "cal_db_interface = \"tcp://max-exfl-cal001:8021\"  # Unused, calibration DB interface to use\n",
     "\n",
     "# Correction parameters\n",
     "n_components = 20  # number of principal components of flat-field to use in correction\n",
@@ -218,7 +218,7 @@
     "    # correct and write sequence files\n",
     "    for seq_id, train_mask in sequence_trains(train_ids, 200):\n",
     "        step_timer.start()\n",
-    "        print('* sequience', seq_id)\n",
+    "        print('* sequence', seq_id)\n",
     "        seq_train_ids = train_ids[train_mask]\n",
     "        seq_timestamps = ts[train_mask]\n",
     "        dc_seq = dc.select_trains(by_id[seq_train_ids])\n",
@@ -238,8 +238,8 @@
     "        for da in process_modules:\n",
     "            instrument_source = modules[da][\"raw_source_name\"]\n",
     "            keydata = dc_seq[instrument_source][image_key].drop_empty_trains()\n",
-    "            count = keydata.data_counts()\n",
-    "            i = np.flatnonzero(count.values)\n",
+    "            count = keydata.data_counts(labelled=False)\n",
+    "            i = np.flatnonzero(count)\n",
     "            raw_images = keydata.select_trains(np.s_[i]).ndarray()\n",
     "\n",
     "            # not pulse resolved\n",