diff --git a/src/slic3r/GUI/GUI.cpp b/src/slic3r/GUI/GUI.cpp
index 2831092da..50b28d85b 100644
--- a/src/slic3r/GUI/GUI.cpp
+++ b/src/slic3r/GUI/GUI.cpp
@@ -199,9 +199,9 @@ void change_opt_value(DynamicPrintConfig& config, const t_config_option_key& opt
 			break;
 		}
 	}
-	catch (const std::exception & /* e */)
+	catch (const std::exception &e)
 	{
-		// int i = 0;//no reason, just experiment
+		wxLogError(format_wxstr(_L("Internal error when changing value for %1%: %2%"), opt_key, e.what()));
 	}
 }
 
diff --git a/src/slic3r/GUI/OptionsGroup.cpp b/src/slic3r/GUI/OptionsGroup.cpp
index 6624982dd..728981f0a 100644
--- a/src/slic3r/GUI/OptionsGroup.cpp
+++ b/src/slic3r/GUI/OptionsGroup.cpp
@@ -904,7 +904,7 @@ boost::any ConfigOptionsGroup::get_config_value(const DynamicPrintConfig& config
 	case coPoints:
 		if (opt_key == "bed_shape")
 			ret = config.option<ConfigOptionPoints>(opt_key)->values;
-        if (opt_key == "thumbnails")
+        else if (opt_key == "thumbnails")
             ret = get_thumbnails_string(config.option<ConfigOptionPoints>(opt_key)->values);
 		else
 			ret = config.option<ConfigOptionPoints>(opt_key)->get_at(idx);