diff --git a/docs/source/release/v5.0.0/muon.rst b/docs/source/release/v5.0.0/muon.rst
index 337a960f43d61b5e00137a135debdfe6dae40e5d..5a03d3456b0cc89fcfaa1d6739c0b60e0d2bcd6e 100644
--- a/docs/source/release/v5.0.0/muon.rst
+++ b/docs/source/release/v5.0.0/muon.rst
@@ -5,22 +5,20 @@ MuSR Changes
 .. contents:: Table of Contents
    :local:
 
-New
-###
-
-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
----------------------------------------------------
+############
+
+New Features
+------------
 - The plotting window within the Muon Analysis 2 and Frequency Domain Interfaces has been converted into a dockable window,
   which can be docked and undocked at will. This change improves the user experience for those working on laptops.
 - Improved the plotting within the Muon Analysis 2 and Frequency Domain interfaces by introducing tiled plotting.
@@ -38,12 +36,25 @@ Muon Analysis 2 and Frequency Domain Interfaces
 - Elemental analysis bug has been fixed that prevented co-adding data.
 
 Bug Fixes
-#########
+---------
 
-- The elemental analysis GUI can now handle legacy data which is missing a response dataset, e.g Delayed.
 - Fixed a bug with constraints in the Muon Analysis 2 GUI which would cause Mantid to crash.
-- Fixed a bug in Muon Analysis Old that prevented the muon fitting functions from appearing in the data analysis tab.
 - Data sets can now be reloaded while the Instrument View is open without crashing Mantid.
 - Fixed a bug where the incorrect path would be shown after loading a data file by run number.
 
+Elemental Analysis
+##################
+
+Bug Fixes
+---------
+- The elemental analysis GUI can now handle legacy data which is missing a response dataset, e.g Delayed.
+
+Muon Analysis (old)
+###################
+
+Bug Fixes
+---------
+- Fixed a bug in Muon Analysis Old that prevented the muon fitting functions from appearing in the data analysis tab.
+
+
 :ref:`Release 5.0.0 <v5.0.0>`
\ No newline at end of file
diff --git a/qt/scientific_interfaces/Direct/ALFView.cpp b/qt/scientific_interfaces/Direct/ALFView.cpp
index 995675fab20546892f17a037ac155605451712d8..80900df4c3f64855b64b32a8d9c10d04ffda6648 100644
--- a/qt/scientific_interfaces/Direct/ALFView.cpp
+++ b/qt/scientific_interfaces/Direct/ALFView.cpp
@@ -24,6 +24,7 @@ Mantid::Kernel::Logger g_log("ALFView");
 ALFView::ALFView(QWidget *parent)
     : UserSubWindow(parent), m_view(nullptr), m_presenter(nullptr),
       m_analysisPane(nullptr) {
+  this->setWindowTitle("ALF View");
   m_model = new ALFCustomInstrumentModel();
   m_view = new ALFCustomInstrumentView(m_model->getInstrument(), this);
   auto analysisView =
diff --git a/qt/scientific_interfaces/Muon/ALCDataLoadingPresenter.cpp b/qt/scientific_interfaces/Muon/ALCDataLoadingPresenter.cpp
index 3e3de2da0b2142be3058947915d36e9ce6bbfd4f..b73b268f1f3c83b59cf4e892d48c3b10d5b078aa 100644
--- a/qt/scientific_interfaces/Muon/ALCDataLoadingPresenter.cpp
+++ b/qt/scientific_interfaces/Muon/ALCDataLoadingPresenter.cpp
@@ -159,6 +159,18 @@ void ALCDataLoadingPresenter::load(const std::string &lastFile) {
   }
 
   try {
+    if (lastRunPath.toString() == "") {
+      throw std::invalid_argument(
+          "The last run is not a valid run number. \n"
+          "This could be because the file is not in the search path or the "
+          "file does not exist yet. ");
+    }
+    if (firstRunPath.toString() == "") {
+      throw std::invalid_argument(
+          "The first run is not a valid run number. \n"
+          "This could be because the file is not in the search path or the "
+          "file does not exist yet. ");
+    }
     IAlgorithm_sptr alg =
         AlgorithmManager::Instance().create("PlotAsymmetryByLogValue");
     alg->setChild(true); // Don't want workspaces in the ADS
@@ -235,6 +247,8 @@ void ALCDataLoadingPresenter::load(const std::string &lastFile) {
 
     emit dataChanged();
 
+  } catch (const std::invalid_argument &e) {
+    m_view->displayError(e.what());
   } catch (std::exception &e) {
     m_view->displayError(e.what());
   }