diff --git a/rowers/tests/testdata/testdata.csv.gz b/rowers/tests/testdata/testdata.csv.gz
index ca5e2cac..2d22d496 100644
Binary files a/rowers/tests/testdata/testdata.csv.gz and b/rowers/tests/testdata/testdata.csv.gz differ
diff --git a/rowers/views/workoutviews.py b/rowers/views/workoutviews.py
index db1018ef..7ced8fa1 100644
--- a/rowers/views/workoutviews.py
+++ b/rowers/views/workoutviews.py
@@ -3016,7 +3016,7 @@ def workout_flexchart3_view(request,*args,**kwargs):
     rowdata = rdata(row.csvfilename)
     try:
         rowdata.set_instroke_metrics()
-    except AttributeError:
+    except (AttributeError,TypeError):
         pass
     try:
         additionalmetrics = rowdata.get_additional_metrics()