diff --git a/xs/src/libslic3r/Config.cpp b/xs/src/libslic3r/Config.cpp
index 8c1349e085..4d3f1f7d9e 100644
--- a/xs/src/libslic3r/Config.cpp
+++ b/xs/src/libslic3r/Config.cpp
@@ -572,7 +572,7 @@ void StaticConfig::set_defaults()
 t_config_option_keys StaticConfig::keys() const 
 {
     t_config_option_keys keys;
-	assert(this->def != nullptr);
+    assert(this->def() != nullptr);
     for (const auto &opt_def : this->def()->options)
         if (this->option(opt_def.first) != nullptr) 
             keys.push_back(opt_def.first);
diff --git a/xs/src/libslic3r/Config.hpp b/xs/src/libslic3r/Config.hpp
index bde1eb651d..89aadb418a 100644
--- a/xs/src/libslic3r/Config.hpp
+++ b/xs/src/libslic3r/Config.hpp
@@ -1028,7 +1028,7 @@ public:
     TYPE* option(const t_config_option_key &opt_key, bool create = false)
     { 
         ConfigOption *opt = this->optptr(opt_key, create);
-        assert(opt == nullptr || opt->type() == TYPE::static_type());
+//        assert(opt == nullptr || opt->type() == TYPE::static_type());
         return (opt == nullptr || opt->type() != TYPE::static_type()) ? nullptr : static_cast<TYPE*>(opt);
     }
     template<typename TYPE>
diff --git a/xs/src/libslic3r/Print.cpp b/xs/src/libslic3r/Print.cpp
index 224545d7cc..d2c4401d2f 100644
--- a/xs/src/libslic3r/Print.cpp
+++ b/xs/src/libslic3r/Print.cpp
@@ -1304,8 +1304,8 @@ public:
 };
 
 // Implementation for PNG raster output
-// Be aware that if a large number of layers are allocated, it can wery well
-// exhaust the available memory.
+// Be aware that if a large number of layers are allocated, it can very well
+// exhaust the available memory.especially on 32 bit platform.
 template<> class FilePrinter<Print::FilePrinterFormat::PNG> {
 
     struct Layer {
@@ -1318,7 +1318,7 @@ template<> class FilePrinter<Print::FilePrinterFormat::PNG> {
 
         Layer(const Layer&) = delete;
         Layer(Layer&& m):
-            first(std::move(m.first)), second(std::move(m.second)) {}
+            first(std::move(m.first)), second(/*std::move(m.second)*/) {}
     };
 
     // We will save the compressed PNG data into stringstreams which can be done
@@ -1439,7 +1439,7 @@ void Print::print_to(std::string dirpath,
 
     LayerPtrs layers;
 
-    // Merge the sliced layers wit hthe support layers
+    // Merge the sliced layers with the support layers
     std::for_each(objects.begin(), objects.end(), [&layers](PrintObject *o){
         layers.insert(layers.end(), o->layers.begin(), o->layers.end());
         layers.insert(layers.end(), o->support_layers.begin(),
@@ -1447,7 +1447,7 @@ void Print::print_to(std::string dirpath,
     });
 
     // Sort layers by z coord
-    std::sort(layers.begin(), layers.end(), [](Layer *l1, Layer *l2){
+    std::sort(layers.begin(), layers.end(), [](Layer *l1, Layer *l2) {
         return l1->print_z < l2->print_z;
     });
 
@@ -1504,6 +1504,8 @@ void Print::print_to(std::string dirpath,
 
         printer.finishLayer(layer_id);  // Finish the layer for later saving it.
 
+        std::cout << "Layer " << layer_id << " processed." << "\n";
+
         // printer.saveLayer(layer_id, dir); We could save the layer immediately
     };
 
diff --git a/xs/src/libslic3r/TriangleMesh.cpp b/xs/src/libslic3r/TriangleMesh.cpp
index 45e4b6f5dc..99e79da18f 100644
--- a/xs/src/libslic3r/TriangleMesh.cpp
+++ b/xs/src/libslic3r/TriangleMesh.cpp
@@ -1192,8 +1192,8 @@ void TriangleMeshSlicer::make_loops(std::vector<IntersectionLine> &lines, Polygo
                 if ((ip1.edge_id  != -1 && ip1.edge_id  == ip2.edge_id) ||
                     (ip1.point_id != -1 && ip1.point_id == ip2.point_id)) {
                     // The current loop is complete. Add it to the output.
-                    assert(opl.points.front().point_id == opl.points.back().point_id);
-                    assert(opl.points.front().edge_id  == opl.points.back().edge_id);
+                    /*assert(opl.points.front().point_id == opl.points.back().point_id);
+                    assert(opl.points.front().edge_id  == opl.points.back().edge_id);*/
                     // Remove the duplicate last point.
                     opl.points.pop_back();
                     if (opl.points.size() >= 3) {
diff --git a/xs/src/slic3r/GUI/Preset.cpp b/xs/src/slic3r/GUI/Preset.cpp
index 1388c35103..631208f79a 100644
--- a/xs/src/slic3r/GUI/Preset.cpp
+++ b/xs/src/slic3r/GUI/Preset.cpp
@@ -183,8 +183,8 @@ void Preset::normalize(DynamicPrintConfig &config)
 			if (key == "compatible_printers")
 				continue;
             auto *opt = config.option(key, false);
-            assert(opt != nullptr);
-            assert(opt->is_vector());
+            /*assert(opt != nullptr);
+            assert(opt->is_vector());*/
             if (opt != nullptr && opt->is_vector())
                 static_cast<ConfigOptionVectorBase*>(opt)->resize(n, defaults.option(key));
         }