diff --git a/rowers/dataprep.py b/rowers/dataprep.py
index 5b388588..620e40fe 100644
--- a/rowers/dataprep.py
+++ b/rowers/dataprep.py
@@ -637,6 +637,8 @@ def update_wps(r, types, mode='water', asynchron=True):
         pass
     except OverflowError:
         pass
+    except TypeError:
+        pass
     except ColumnNotFoundError:
         pass
 
diff --git a/rowers/tests/testdata/testdata.tcx.gz b/rowers/tests/testdata/testdata.tcx.gz
index 9d8b8bed..7cfb8e65 100644
Binary files a/rowers/tests/testdata/testdata.tcx.gz and b/rowers/tests/testdata/testdata.tcx.gz differ