diff --git a/rowers/dataprep.py b/rowers/dataprep.py
index 4543673e..5b388588 100644
--- a/rowers/dataprep.py
+++ b/rowers/dataprep.py
@@ -587,8 +587,9 @@ def setcp(workout, background=False, recurrance=True):
 
         with gzip.open(filename, 'w') as f:
             df.write_parquet(f)
-    except:
-        return False
+    except Exception as e:
+        dologging("metrics.log", "setcp: "+ str(e))
+        return pl.DataFrame({'delta': [], 'cp': []}), pl.Series(dtype=pl.Float64), pl.Series(dtype=pl.Float64)
 
     #df.to_parquet(filename, engine='fastparquet', compression='GZIP')
 
diff --git a/rowers/tests/testdata/testdata.tcx.gz b/rowers/tests/testdata/testdata.tcx.gz
index d6f26560..893ad688 100644
Binary files a/rowers/tests/testdata/testdata.tcx.gz and b/rowers/tests/testdata/testdata.tcx.gz differ