diff --git a/src/Interface/Application/SCIRunMainWindow.cc b/src/Interface/Application/SCIRunMainWindow.cc
index 14683914c8..d25c70d1fe 100644
--- a/src/Interface/Application/SCIRunMainWindow.cc
+++ b/src/Interface/Application/SCIRunMainWindow.cc
@@ -51,6 +51,7 @@
 #include <Core/Logging/Log.h>
 #include <Dataflow/Serialization/Network/NetworkDescriptionSerialization.h>
 #include <Dataflow/Serialization/Network/Importer/NetworkIO.h>
+#include <chrono>
 
 #ifdef BUILD_WITH_PYTHON
 #include <Interface/Application/PythonConsoleWidget.h>
@@ -398,12 +399,45 @@ QString SCIRunMainWindow::strippedName(const QString& fullFileName)
   return info.fileName();
 }
 
+namespace 
+{
+bool fileExistCheck(const std::string& filename)
+{
+  bool fileExists;
+  //TODO: boost upgrade to 1.80 should remove the need for the try/catch--see issue #2407
+  try
+  {
+    fileExists = boost::filesystem::exists(filename);
+  }
+  catch (...)
+  {
+    fileExists = false;
+  }
+  return fileExists;
+}
+
+bool superFileExistCheck(const std::string& filename)
+{
+  auto check = std::async([filename]() { return fileExistCheck(filename); });
+  auto status = check.wait_for(std::chrono::seconds(1));
+  if (status == std::future_status::ready)
+    return check.get();
+  return false;
+}
+}
+
 void SCIRunMainWindow::updateRecentFileActions()
 {
   QMutableStringListIterator i(recentFiles_);
-  while (i.hasNext()) {
-    if (!QFile::exists(i.next()))
+  while (i.hasNext()) 
+  {
+    const auto file = i.next().toStdString();
+    
+    if (!superFileExistCheck(file))
+    {
+      logWarning("Network file {} not found, removing entry from recent list.", file);
       i.remove();
+    }
   }
 
   for (int j = 0; j < MaxRecentFiles; ++j)
diff --git a/src/Modules/Legacy/String/PrintStringIntoString.cc b/src/Modules/Legacy/String/PrintStringIntoString.cc
index 11f54e3426..28ecba2053 100644
--- a/src/Modules/Legacy/String/PrintStringIntoString.cc
+++ b/src/Modules/Legacy/String/PrintStringIntoString.cc
@@ -72,29 +72,24 @@ PrintStringIntoString::execute()
   std::string  str;
 
   std::vector<char> buffer(256);
-  bool    lastport = false;
-
-
-  auto  stringH = getOptionalInput(Format);
-
+  bool lastport = false;
+  auto stringH = getOptionalInput(Format);
   auto state = get_state();
 
   // check for port input and in none use gui input
   if (stringH && *stringH)
   {
-    state -> setValue(FormatString, (*stringH) -> value());
+    state->setValue(FormatString, (*stringH)->value());
   }
-  format = state -> getValue(FormatString).toString();
-
+  format = state->getValue(FormatString).toString();
 
-  // Get the dynamic handles
   auto stringsH = getOptionalDynamicInputs(Input);
 
 
   if (needToExecute())
   {
     size_t i = 0;
-    while(i < format.size())
+    while (i < format.size())
     {
       if (format[i] == '%')
       {
@@ -102,7 +97,7 @@ PrintStringIntoString::execute()
         {
           error("Improper format string '%' is last character");
           return;
-      }
+        }
 
         if (format[i+1] == '%')
         {
@@ -125,34 +120,33 @@ PrintStringIntoString::execute()
 
           std::string fstr = format.substr(i,j-i+1);
 
+          if ((format[j] == 's')||(format[j] == 'S')||(format[j] == 'c')||(format[j] == 'C'))
           {
-            str = "";
-            if (lastport == false)
             {
-              if (inputport == stringsH.size())
-              {
-                lastport = true;
-              }
-              else
+              str = "";
+              if (!lastport)
               {
-                if (stringsH.size() == static_cast<size_t>(inputport))
+                if (inputport == stringsH.size())
                 {
                   lastport = true;
                 }
                 else
                 {
-                  currentstring = stringsH[inputport]; inputport++;
-                  if (currentstring)
+                  if (stringsH.size() == static_cast<size_t>(inputport))
+                  {
+                    lastport = true;
+                  }
+                  else
                   {
-                    str = currentstring->value();
+                    currentstring = stringsH[inputport++];
+                    if (currentstring)
+                    {
+                      str = currentstring->value();
+                    }
                   }
                 }
               }
             }
-          }
-
-          if ((format[j] == 's')||(format[j] == 'S')||(format[j] == 'c')||(format[j] == 'C'))
-          {
             // We put the %s %S back in the string so it can be filled out lateron
             // By a different module
 
@@ -209,7 +203,7 @@ PrintStringIntoString::execute()
         output += format[i++];
       }
     }
-
+    
     StringHandle handle(new String(output));
     sendOutput(Output, handle);
   }