diff --git a/Framework/DataHandling/src/LoadPSIMuonBin.cpp b/Framework/DataHandling/src/LoadPSIMuonBin.cpp
index 925ba1ba28187ac25cfa4b5420280d5fcbcbfdcf..72c876dc7ec1930eac268d0e3a896a15c3b4789d 100644
--- a/Framework/DataHandling/src/LoadPSIMuonBin.cpp
+++ b/Framework/DataHandling/src/LoadPSIMuonBin.cpp
@@ -591,6 +591,9 @@ void LoadPSIMuonBin::assignOutputWorkspaceParticulars(
     if (m_header.labelsOfHistograms[i] == "")
       break;
     std::string name = m_header.labelsOfHistograms[i];
+	// if no name is present (or just empty space)
+	// replace with default name:
+	// group_specNum
     std::string label =
         (name.size() > 0 && name.find_first_not_of(" ") == std::string::npos)
             ? "group_" + std::to_string(i+1)
diff --git a/docs/source/algorithms/LoadPSIMuonBin-v1.rst b/docs/source/algorithms/LoadPSIMuonBin-v1.rst
index 0ed60840afce762d544b2b00480191e3593fe339..80601bda8c49d8bf687fea9e19e4082727f0312f 100644
--- a/docs/source/algorithms/LoadPSIMuonBin-v1.rst
+++ b/docs/source/algorithms/LoadPSIMuonBin-v1.rst
@@ -27,6 +27,8 @@ is plottable.
 
 The times are automatically offset by the value for first good data, such that the pulse is at approximatly time equals zero. This is to be consistant with ISIS measurment data.
 
+If no group name is recorded in the data file a name of `group_specNum` will be used, where `specNum` is the spectrum number.
+
 Errors
 ######
 
diff --git a/docs/source/release/v4.3.0/muon.rst b/docs/source/release/v4.3.0/muon.rst
index a705a8bee3605e308ab4ab84614b78422d0eb6dd..036632d03d9d2356901b353d8265eed31cf846f1 100644
--- a/docs/source/release/v4.3.0/muon.rst
+++ b/docs/source/release/v4.3.0/muon.rst
@@ -14,6 +14,11 @@ Improvements
 Algorithms
 -------------
 
+Bug Fixes
+#########
+- :ref:`LoadPSIMuonBin <algm-LoadPSIMuonBin>` can produce an empty dead time table, the time data is offset such that the start of thepulse is at time zero. The start and end date logs have been fixed and if no group name is present a default is generated.
+
+
 Muon Analysis 2 and Frequency Domain Interfaces
 ---------------------------------------------------
 - The plotting window within the Muon Analysis 2 and Frequency Domain Interfaces has been converted into a dockable window,
@@ -26,6 +31,7 @@ Muon Analysis 2 and Frequency Domain Interfaces
   part due to the new tiled plotting feature.
 - Added a plotting options toolbar to the docked plotting in the Muon Analysis 2 and Frequency Domain interfaces. This toolbar
   can be used to autoscale the axes, change the axes limits, and control the plotting of errors.
+- Fixed a bug that prevented PSI data from being loaded.
 
 Bug Fixes
 #########
diff --git a/scripts/Muon/GUI/Common/ADSHandler/muon_workspace_wrapper.py b/scripts/Muon/GUI/Common/ADSHandler/muon_workspace_wrapper.py
index 1bb269706bcaa9132dc949b08646605c10a3da73..2eb74b56ddc5b77794c86756c9b6fc6653526f7e 100644
--- a/scripts/Muon/GUI/Common/ADSHandler/muon_workspace_wrapper.py
+++ b/scripts/Muon/GUI/Common/ADSHandler/muon_workspace_wrapper.py
@@ -41,7 +41,6 @@ class MuonWorkspaceWrapper(object):
         self._workspace = None
         self._directory_structure = ""
         self._workspace_name = ""
-        print(workspace, "moo")
         if isinstance(workspace, Workspace):
             self.workspace = workspace
         else:
diff --git a/scripts/Muon/GUI/Common/calculate_pair_and_group.py b/scripts/Muon/GUI/Common/calculate_pair_and_group.py
index b955621ffcaeb3025d68dfb23f8ef5b4bf104e30..32bf1f096480b166e8a8f18c805aab23099527b9 100644
--- a/scripts/Muon/GUI/Common/calculate_pair_and_group.py
+++ b/scripts/Muon/GUI/Common/calculate_pair_and_group.py
@@ -63,7 +63,6 @@ def _get_pre_processing_params(context, run, rebin):
         if context.gui_context['TimeZeroFromFile']:
             time_offset = 0.0
         else:
-            print("baa",context.data_context.get_loaded_data_for_run(run)["TimeZero"] ,context.gui_context['TimeZero'],context.data_context.get_loaded_data_for_run(run)["TimeZero"] - context.gui_context['TimeZero']   )
             time_offset = context.data_context.get_loaded_data_for_run(run)["TimeZero"] - context.gui_context['TimeZero']
         pre_process_params["TimeOffset"] = time_offset
     except KeyError:
@@ -121,7 +120,6 @@ def _get_MuonGroupingCounts_parameters(context, group_name, run):
     group = context.group_pair_context[group_name]
     if group:
         params["GroupName"] = group_name
-        print("dsaf", group_name)
         params["Grouping"] = ",".join([str(i) for i in group.detectors])
 
     return params
diff --git a/scripts/Muon/GUI/Common/contexts/muon_group_pair_context.py b/scripts/Muon/GUI/Common/contexts/muon_group_pair_context.py
index cd0a66e7e944c744be8ddb2f9a9415e97121f5fd..fbba52a0e9f9cdd16dd3f67c8c7320eb8a269fa7 100644
--- a/scripts/Muon/GUI/Common/contexts/muon_group_pair_context.py
+++ b/scripts/Muon/GUI/Common/contexts/muon_group_pair_context.py
@@ -52,10 +52,8 @@ def get_default_grouping(workspace, instrument, main_field_direction):
         try:
             if isinstance(workspace, WorkspaceGroup):
                 grouping_file = workspace[0].getInstrument().getStringParameter(parameter_name)[0]
-                print("d", grouping_file)
             else:
                 grouping_file = workspace.getInstrument().getStringParameter(parameter_name)[0]
-                print("e", grouping_file)
 
         except IndexError:
             return [], [], ''
diff --git a/scripts/Muon/GUI/Common/grouping_table_widget/grouping_table_widget_presenter.py b/scripts/Muon/GUI/Common/grouping_table_widget/grouping_table_widget_presenter.py
index a063842c5ac7481258d0f1859c6ff747b3436fcf..f9be5d27a856bf51db423ee407b3fd8654547fd0 100644
--- a/scripts/Muon/GUI/Common/grouping_table_widget/grouping_table_widget_presenter.py
+++ b/scripts/Muon/GUI/Common/grouping_table_widget/grouping_table_widget_presenter.py
@@ -105,7 +105,6 @@ class GroupingTablePresenter(object):
         self._view.disable_updates()
         assert isinstance(group, MuonGroup)
         entry = [str(group.name), state, run_utils.run_list_to_string(group.detectors, False), str(group.n_detectors)]
-        self._view.warning_popup("moo")
         self._view.add_entry_to_table(entry)
         self._view.enable_updates()
 
diff --git a/scripts/Muon/GUI/Common/utilities/load_utils.py b/scripts/Muon/GUI/Common/utilities/load_utils.py
index e4bca39fff2896b235991a47b3a5cb515fea272a..dc0b4af1c3e454cf256a4ff9936e865c85cf1e74 100644
--- a/scripts/Muon/GUI/Common/utilities/load_utils.py
+++ b/scripts/Muon/GUI/Common/utilities/load_utils.py
@@ -206,30 +206,25 @@ def load_workspace_from_filename(filename,
         alg.execute()
 
     workspace = AnalysisDataService.retrieve(alg.getProperty("OutputWorkspace").valueAsStr)
-    print("fsdaf", workspace)
     if is_workspace_group(workspace):
-        print("multi")
         # handle multi-period data
         load_result = _get_algorithm_properties(alg, output_properties)
         load_result["OutputWorkspace"] = [MuonWorkspaceWrapper(ws) for ws in workspace.getNames()]
         run = get_run_from_multi_period_data(workspace)
-        if not psi_data:
-            load_result["DataDeadTimeTable"] = AnalysisDataService.retrieve(load_result["DeadTimeTable"]).getNames()[0]
-            for index, deadtime_table in enumerate(AnalysisDataService.retrieve(load_result["DeadTimeTable"]).getNames()):
-                if index == 0:
-                    load_result["DataDeadTimeTable"] = deadtime_table
-                else:
-                    DeleteWorkspace(Workspace=deadtime_table)
-
-            load_result["FirstGoodData"] = round(load_result["FirstGoodData"] - load_result['TimeZero'], 2)
-            UnGroupWorkspace(load_result["DeadTimeTable"])
-            load_result["DeadTimeTable"] = None
-            UnGroupWorkspace(workspace.name())
-        else:
-            load_result["DataDeadTimeTable"] = None
-            load_result["FirstGoodData"] = round(load_result["FirstGoodData"], 2)
+
+        load_result["DataDeadTimeTable"] = AnalysisDataService.retrieve(load_result["DeadTimeTable"]).getNames()[0]
+        for index, deadtime_table in enumerate(AnalysisDataService.retrieve(load_result["DeadTimeTable"]).getNames()):
+            if index == 0:
+                load_result["DataDeadTimeTable"] = deadtime_table
+            else:
+                DeleteWorkspace(Workspace=deadtime_table)
+
+        load_result["FirstGoodData"] = round(load_result["FirstGoodData"] - load_result['TimeZero'], 2)
+        UnGroupWorkspace(load_result["DeadTimeTable"])
+        load_result["DeadTimeTable"] = None
+        UnGroupWorkspace(workspace.name())
+
     else:
-        print("single", output_properties)
         # single period data
         load_result = _get_algorithm_properties(alg, output_properties)
         load_result["OutputWorkspace"] = [MuonWorkspaceWrapper(load_result["OutputWorkspace"])]