diff --git a/src/Base/Exception.cpp b/src/Base/Exception.cpp
index 4d2a009e11..7b108a79cd 100644
--- a/src/Base/Exception.cpp
+++ b/src/Base/Exception.cpp
@@ -125,27 +125,32 @@ PyObject * Exception::getPyObject(void)
 
 void Exception::setPyObject( PyObject * pydict)
 {
-    if (pydict && Py::_Dict_Check(pydict)) {
-        Py::Dict edict(pydict);
-        if (edict.hasKey("sfile"))
-            _file = static_cast<std::string>(Py::String(edict.getItem("sfile")));
+    try {
+        if (pydict && Py::_Dict_Check(pydict)) {
+            Py::Dict edict(pydict);
+            if (edict.hasKey("sfile"))
+                _file = static_cast<std::string>(Py::String(edict.getItem("sfile")));
 
-        if (edict.hasKey("sfunction"))
-            _function = static_cast<std::string>(Py::String(edict.getItem("sfunction")));
+            if (edict.hasKey("sfunction"))
+                _function = static_cast<std::string>(Py::String(edict.getItem("sfunction")));
 
-        if (edict.hasKey("sErrMsg"))
-            _sErrMsg = static_cast<std::string>(Py::String(edict.getItem("sErrMsg")));
+            if (edict.hasKey("sErrMsg"))
+                _sErrMsg = static_cast<std::string>(Py::String(edict.getItem("sErrMsg")));
 
-        if (edict.hasKey("iline"))
+            if (edict.hasKey("iline"))
 #if PY_MAJOR_VERSION >= 3
-            _line = static_cast<long>(Py::Long(edict.getItem("iline")));
+                _line = static_cast<long>(Py::Long(edict.getItem("iline")));
 #else
-            _line = static_cast<int>(Py::Int(edict.getItem("iline")));
+                _line = static_cast<int>(Py::Int(edict.getItem("iline")));
 #endif
-        if (edict.hasKey("btranslatable"))
-            _isTranslatable = static_cast<bool>(Py::Boolean(edict.getItem("btranslatable")));
-        if (edict.hasKey("breported"))
-            _isReported = static_cast<bool>(Py::Boolean(edict.getItem("breported")));
+            if (edict.hasKey("btranslatable"))
+                _isTranslatable = static_cast<bool>(Py::Boolean(edict.getItem("btranslatable")));
+            if (edict.hasKey("breported"))
+                _isReported = static_cast<bool>(Py::Boolean(edict.getItem("breported")));
+        }
+    }
+    catch (Py::Exception& e) {
+        e.clear(); // should never happen
     }
 }
 
diff --git a/src/Gui/Command.cpp b/src/Gui/Command.cpp
index be9d346b28..24efce7665 100644
--- a/src/Gui/Command.cpp
+++ b/src/Gui/Command.cpp
@@ -690,7 +690,8 @@ void Command::_runCommand(const char *file, int line, DoCmd_Type eType, const ch
 
     try {
         Base::Interpreter().runString(sCmd);
-    }catch(Py::Exception &) {
+    }
+    catch(Py::Exception &) {
         Base::PyException::ThrowException();
     }
 }
diff --git a/src/Mod/PartDesign/Gui/TaskTransformedParameters.cpp b/src/Mod/PartDesign/Gui/TaskTransformedParameters.cpp
index f84b5a0075..7c43fe671d 100644
--- a/src/Mod/PartDesign/Gui/TaskTransformedParameters.cpp
+++ b/src/Mod/PartDesign/Gui/TaskTransformedParameters.cpp
@@ -362,22 +362,42 @@ App::DocumentObject* TaskTransformedParameters::getSketchObject() const {
 
 void TaskTransformedParameters::hideObject()
 {
-    FCMD_OBJ_HIDE(getTopTransformedObject());
+    try {
+        FCMD_OBJ_HIDE(getTopTransformedObject());
+    }
+    catch (const Base::Exception& e) {
+        e.ReportException();
+    }
 }
 
 void TaskTransformedParameters::showObject()
 {
-    FCMD_OBJ_SHOW(getTopTransformedObject());
+    try {
+        FCMD_OBJ_SHOW(getTopTransformedObject());
+    }
+    catch (const Base::Exception& e) {
+        e.ReportException();
+    }
 }
 
 void TaskTransformedParameters::hideBase()
 {
-    FCMD_OBJ_HIDE(getBaseObject());
+    try {
+        FCMD_OBJ_HIDE(getBaseObject());
+    }
+    catch (const Base::Exception& e) {
+        e.ReportException();
+    }
 }
 
 void TaskTransformedParameters::showBase()
 {
-    FCMD_OBJ_SHOW(getBaseObject());
+    try {
+        FCMD_OBJ_SHOW(getBaseObject());
+    }
+    catch (const Base::Exception& e) {
+        e.ReportException();
+    }
 }
 
 void TaskTransformedParameters::exitSelectionMode()