diff --git a/qt/widgets/instrumentview/src/InstrumentActor.cpp b/qt/widgets/instrumentview/src/InstrumentActor.cpp
index 511b404e2b1c..803ac075923c 100644
--- a/qt/widgets/instrumentview/src/InstrumentActor.cpp
+++ b/qt/widgets/instrumentview/src/InstrumentActor.cpp
@@ -327,8 +327,11 @@ void InstrumentActor::applyMaskWorkspace() {
   }
 
   // Mask bins
-  m_maskBinsData.mask(m_workspace);
-
+  try {
+    m_maskBinsData.mask(m_workspace);
+  } catch (std::logic_error &) {
+    m_messageHandler.giveUserWarning("An error occurred when applying the mask to bins.", "Mantid - Warning");
+  }
   clearMasks();
 }
 
diff --git a/qt/widgets/instrumentview/src/MaskBinsData.cpp b/qt/widgets/instrumentview/src/MaskBinsData.cpp
index ef6955c61e6f..7524dfaf524b 100644
--- a/qt/widgets/instrumentview/src/MaskBinsData.cpp
+++ b/qt/widgets/instrumentview/src/MaskBinsData.cpp
@@ -33,7 +33,7 @@ void MaskBinsData::mask(std::shared_ptr<Mantid::API::MatrixWorkspace> &workspace
                    [](const size_t spec) -> int { return static_cast<int>(spec); });
     auto alg = Mantid::API::AlgorithmManager::Instance().create("MaskBins", -1);
     alg->setProperty("InputWorkspace", workspace);
-    alg->setProperty("OutputWorkspace", workspace);
+    alg->setPropertyValue("OutputWorkspace", workspace->getName());
     alg->setProperty("InputWorkspaceIndexSet", spectraList);
     alg->setProperty("XMin", mask.start);
     alg->setProperty("XMax", mask.end);