diff --git a/.github/workflows/buildAndUploadPyPi.yml b/.github/workflows/buildAndUploadPyPi.yml
index 7b9bc757c..c70b57972 100644
--- a/.github/workflows/buildAndUploadPyPi.yml
+++ b/.github/workflows/buildAndUploadPyPi.yml
@@ -13,8 +13,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        # macos-13 is an intel runner, macos-14 is apple silicon
-        os: [ ubuntu-latest, windows-latest, macos-14 ]
+        os: [ ubuntu-latest, windows-latest, macos-latest ]
 #        os: [ubuntu-latest, ubuntu-24.04-arm, windows-latest, windows-11-arm, macos-13, macos-14]
 
     steps:
diff --git a/avaframe/in3Utils/geoTrans.py b/avaframe/in3Utils/geoTrans.py
index 15860c00c..c813bbae3 100644
--- a/avaframe/in3Utils/geoTrans.py
+++ b/avaframe/in3Utils/geoTrans.py
@@ -1753,8 +1753,8 @@ def snapPtsToLine(dbData, projstr, lineName, pointsList):
     """
 
     for pt in pointsList:
-        dbData[pt + "_" + projstr + "_snapped"] = np.empty(len(dbData))
-        dbData["distanceXY"] = np.empty(len(dbData))
+        # object dtype as the column holds shapely points
+        dbData[pt + "_" + projstr + "_snapped"] = np.empty(len(dbData), dtype=object)
 
     for index, row in dbData.iterrows():
         xycoor = np.asarray(dbData.loc[index, ("%s_%s_resampled" % (lineName, projstr))].coords.xy)
diff --git a/avaframe/tests/test_aimecTools.py b/avaframe/tests/test_aimecTools.py
index c3b8e006c..011ecc061 100644
--- a/avaframe/tests/test_aimecTools.py
+++ b/avaframe/tests/test_aimecTools.py
@@ -188,8 +188,8 @@ def test_analyzeDiffsRunoutLines(tmp_path):
     resAnalysisDF = pd.DataFrame(
         data={
             "runoutLineDiff_line": [np.nan],
-            "runoutLineDiff_line_pointsNotFoundInSim": [np.nan],
-            "runoutLineDiff_line_pointsNotFoundInRef": [np.nan],
+            "runoutLineDiff_line_pointsNotFoundInSim": [""],
+            "runoutLineDiff_line_pointsNotFoundInRef": [""],
             "runoutLineDiff_line_RMSE": [np.nan],
             "simName": ["simA"],
         }