diff --git a/benchmarks/basic_tests.py b/benchmarks/basic_tests.py
index 953c1326..9f5453e0 100644
--- a/benchmarks/basic_tests.py
+++ b/benchmarks/basic_tests.py
@@ -1351,7 +1351,7 @@ def build_and_draw_prior(t_d="ends",num_reals=500):
     #glm_long_name_test()
     #sen_plusplus_test()
     #parchglim_test()
-    #unc_file_test()
+    unc_file_test()
     #cmdline_test()
     #secondary_marker_test()
     #basic_test("ies_10par_xsec")
@@ -1382,7 +1382,7 @@ def build_and_draw_prior(t_d="ends",num_reals=500):
     #mf6_v5_sen_test()
 
     #shutil.copy2(os.path.join("..","exe","windows","x64","Debug","pestpp-opt.exe"),os.path.join("..","bin","win","pestpp-opt.exe"))
-    mf6_v5_opt_stack_test()
+    #mf6_v5_opt_stack_test()
     #mf6_v5_glm_test()
     #mf6_v5_ies_test()
     #cmdline_test()
diff --git a/src/libs/pestpp_common/Localizer.cpp b/src/libs/pestpp_common/Localizer.cpp
index 537688ca..d7b3e6a1 100644
--- a/src/libs/pestpp_common/Localizer.cpp
+++ b/src/libs/pestpp_common/Localizer.cpp
@@ -48,7 +48,11 @@ bool Localizer::initialize(PerformanceLog *performance_log, ofstream& frec, bool
 	}
 
     how = How::PARAMETERS;
-    if (how_str[0] == 'O')
+    if (how_str[0] == 'P')
+    {
+
+    }
+    else if (how_str[0] == 'O')
     {
         ss.str("");
         ss << "WARNING: localization 'how' by observations is deprecated, resetting to 'how' by parameters";