diff --git a/src/ifcchat/ifc_worker.js b/src/ifcchat/ifc_worker.js
index 517bc4b24c..06d6ecdf70 100644
--- a/src/ifcchat/ifc_worker.js
+++ b/src/ifcchat/ifc_worker.js
@@ -29,16 +29,7 @@ async function ensurePyodide() {
         const micropip = pyodide.pyimport("micropip");
         micropip.install("python-dateutil")
         
-        // Detect python minor version (3.12 vs 3.13) and pick a matching wheel.
-        const pyVer = pyodide.runPython(`
-import sys
-f"{sys.version_info.major}.{sys.version_info.minor}"
-    `);
-
-        const wheelUrl =
-            pyVer === "3.13"
-                ? "https://ifcopenshell.github.io/wasm-wheels/ifcopenshell-0.8.3+34a1bc6-cp313-cp313-emscripten_4_0_9_wasm32.whl"
-                : "https://ifcopenshell.github.io/wasm-wheels/ifcopenshell-0.8.2+d50e806-cp312-cp312-emscripten_3_1_58_wasm32.whl";
+        const wheelUrl = "https://ifcopenshell.github.io/wasm-wheels/ifcopenshell-0.8.5-cp313-cp313-pyodide_2025_0_wasm32.whl";
 
         await micropip.install(wheelUrl);
 
diff --git a/src/ifcgeom/mapping/IfcPointByDistanceExpression.cpp b/src/ifcgeom/mapping/IfcPointByDistanceExpression.cpp
index 180226fb82..f07234a8f1 100644
--- a/src/ifcgeom/mapping/IfcPointByDistanceExpression.cpp
+++ b/src/ifcgeom/mapping/IfcPointByDistanceExpression.cpp
@@ -52,6 +52,15 @@ taxonomy::ptr mapping::map_impl(const IfcSchema::IfcPointByDistanceExpression* i
    if (inst->OffsetVertical().has_value()) {
        auto offset_vertical = inst->OffsetVertical().get() * length_unit_;
        o += offset_vertical * z;
+
+       auto tmp1 = (z * offset_vertical).eval();
+       auto tmp2 = (Eigen::Vector3d(0, 0, 1) * offset_vertical).eval();
+       auto tmp3 = (tmp1 - tmp2).eval();
+
+       std::ostringstream oss;
+       oss << "local z: " << z.x() << "," << z.y() << "," << z.z() << "; delta: " << tmp3.x() << "," << tmp3.y() << "," << tmp3.z();
+       auto osss = oss.str();
+       std::wcout << osss.c_str() << std::endl;
    }
 
    if (inst->OffsetLongitudinal().has_value()) {
diff --git a/src/svgfill/src/arrange_polygons.cpp b/src/svgfill/src/arrange_polygons.cpp
index ba8785a267..8663321d6c 100644
--- a/src/svgfill/src/arrange_polygons.cpp
+++ b/src/svgfill/src/arrange_polygons.cpp
@@ -3256,7 +3256,7 @@ void arrange_cgal_polygons(svgfill::arrange_polygon_settings settings, const std
         double threshold;
         clean_noisy_paths(debug_output, arr, segment_lookup, threshold);
         remove_colinear_vertices(arr);
-        clean_noisy_bounds(debug_output, arr, segment_lookup, threshold);
+        // clean_noisy_bounds(debug_output, arr, segment_lookup, threshold);
     }
 
     t0.stop();