diff --git a/.gitlab/issue_templates/bug.md b/.gitlab/issue_templates/bug.md
index 1423a4aa00..636bc4d576 100644
--- a/.gitlab/issue_templates/bug.md
+++ b/.gitlab/issue_templates/bug.md
@@ -3,6 +3,9 @@
 
   Before opening a new issue, make sure to search for keywords in the issues
   filtered by the "bug" label and check to see if it has already been reported
+  
+  You can see how your report will be rendered on the platform by using the
+  "preview" tab above
 -->
 
 <!--
@@ -14,12 +17,10 @@
 
 <!-- Summarize the bug encountered concisely -->
 
-
 ### Steps to reproduce
 
 <!-- How one can reproduce the issue - this is very important -->
 
-
 ### Example case
 
 <!--
@@ -29,17 +30,14 @@
   whether the bug has been fixed in a more recent version
 -->
 
-
 ### What is the current *bug* behaviour?
 
 <!-- What actually happens -->
 
-
 ### What is the expected *correct* behavior?
 
 <!-- What you should see instead -->
 
-
 ### Relevant logs and/or images
 
 <!--
@@ -47,7 +45,6 @@
   output, logs, and code as it's very hard to read otherwise.
 -->
 
-
 ### Environment information
 
 <!--
@@ -57,15 +54,20 @@
   Hardware info    : any info that may help?
   Compiler         : gcc|intel|clang etc
  -->
-OpenFOAM version :
-Operating system :
-Compiler         :
+
+- OpenFOAM version :
+- Operating system :
+- Hardware info    :
+- Compiler         :
 
 ### Possible fixes
 
 <!--
   If you can, link to the line of code that might be responsible for the
   problem
+
+  The "/label ~bug" text is a gitlab flag that will add the "bug" label to this
+  issue
 -->
 
 /label ~bug
diff --git a/src/OpenFOAM/db/IOobjectList/IOobjectListTemplates.C b/src/OpenFOAM/db/IOobjectList/IOobjectListTemplates.C
index 3c31f51aa6..14c4f2235e 100644
--- a/src/OpenFOAM/db/IOobjectList/IOobjectListTemplates.C
+++ b/src/OpenFOAM/db/IOobjectList/IOobjectListTemplates.C
@@ -622,11 +622,16 @@ Foam::label Foam::IOobjectList::filterClasses
     const bool pruning
 )
 {
-//    return HashPtrTable<IOobject>::filterValues
-//    (
-//        [&](const IOobject* io){ return pred(io->headerClassName()); },
-//        pruning
-//    );
+// This is like
+// return HashPtrTable<IOobject>::filterValues
+// (
+//     [&](const IOobject* io){ return pred(io->headerClassName()); },
+//     pruning
+// );
+// which is really
+// return HashTable<IOobject*>::filterValues
+//
+// except that it does not leak
 
     label changed = 0;
 
@@ -654,7 +659,29 @@ Foam::label Foam::IOobjectList::filterObjects
     const bool pruning
 )
 {
-    return HashPtrTable<IOobject>::filterKeys(pred, pruning);
+// This is like
+// return HashPtrTable<IOobject>::filterKeys(pred, pruning);
+// which is really
+// return HashTable<IOobject*>::filterKeys(pred, pruning);
+//
+// except that it does not leak
+
+    label changed = 0;
+
+    for (iterator iter = begin(); iter != end(); ++iter)
+    {
+        // Matches? either prune (pruning) or keep (!pruning)
+        if
+        (
+            (pred(iter.key()) ? pruning : !pruning)
+         && erase(iter)
+        )
+        {
+            ++changed;
+        }
+    }
+
+    return changed;
 }
 
 
diff --git a/src/OpenFOAM/fields/DimensionedFields/DimensionedField/DimensionedField.C b/src/OpenFOAM/fields/DimensionedFields/DimensionedField/DimensionedField.C
index da42cc7386..1fcf0353bc 100644
--- a/src/OpenFOAM/fields/DimensionedFields/DimensionedField/DimensionedField.C
+++ b/src/OpenFOAM/fields/DimensionedFields/DimensionedField/DimensionedField.C
@@ -299,7 +299,7 @@ Foam::DimensionedField<Type, GeoMesh>::DimensionedField
     const DimensionedField<Type, GeoMesh>& df
 )
 :
-    regIOobject(newName, df, newName == df.name()),
+    regIOobject(newName, df, newName != df.name()),
     Field<Type>(df),
     mesh_(df.mesh_),
     dimensions_(df.dimensions_),
diff --git a/src/TurbulenceModels/compressible/turbulentFluidThermoModels/derivedFvPatchFields/externalWallHeatFluxTemperature/externalWallHeatFluxTemperatureFvPatchScalarField.C b/src/TurbulenceModels/compressible/turbulentFluidThermoModels/derivedFvPatchFields/externalWallHeatFluxTemperature/externalWallHeatFluxTemperatureFvPatchScalarField.C
index 3e1b312bdd..56bbf2d8db 100644
--- a/src/TurbulenceModels/compressible/turbulentFluidThermoModels/derivedFvPatchFields/externalWallHeatFluxTemperature/externalWallHeatFluxTemperatureFvPatchScalarField.C
+++ b/src/TurbulenceModels/compressible/turbulentFluidThermoModels/derivedFvPatchFields/externalWallHeatFluxTemperature/externalWallHeatFluxTemperatureFvPatchScalarField.C
@@ -413,14 +413,14 @@ void Foam::externalWallHeatFluxTemperatureFvPatchScalarField::updateCoeffs()
                     scalarField lambdaTa4(pow4((1 - TpLambda)*Ta));
 
                     hp += emissivity_*sigma.value()*(pow4(Ts) - lambdaTa4)/Tp;
-                    hpTa += sigma.value()*(emissivity_*lambdaTa4 + pow4(Ta));
+                    hpTa += emissivity_*sigma.value()*(lambdaTa4 + pow4(Ta));
                 }
                 else
                 {
                     // ... if there is no solid wall thermal resistance use
                     // the current wall temperature
                     hp += emissivity_*sigma.value()*pow3(Tp);
-                    hpTa += sigma.value()*pow4(Ta);
+                    hpTa += emissivity_*sigma.value()*pow4(Ta);
                 }
             }
 
@@ -456,20 +456,14 @@ void Foam::externalWallHeatFluxTemperatureFvPatchScalarField::updateCoeffs()
 
     mixedFvPatchScalarField::updateCoeffs();
 
-    if (debug)
-    {
-        const scalar Q = gSum(kappa(Tp)*patch().magSf()*snGrad());
-
-        Info<< patch().boundaryMesh().mesh().name() << ':'
-            << patch().name() << ':'
-            << internalField().name() << " :"
-            << " heat transfer rate:" << Q
-            << " wall temperature "
-            << " min:" << gMin(*this)
-            << " max:" << gMax(*this)
-            << " avg:" << gAverage(*this)
-            << endl;
-    }
+    DebugInfo
+        << patch().boundaryMesh().mesh().name() << ':' << patch().name() << ':'
+        << internalField().name() << " :"
+        << " heat transfer rate:" << gSum(kappa(Tp)*patch().magSf()*snGrad())
+        << " wall temperature "
+        << " min:" << gMin(*this)
+        << " max:" << gMax(*this)
+        << " avg:" << gAverage(*this) << nl;
 }
 
 
diff --git a/src/functionObjects/graphics/runTimePostProcessing/runTimePostProcessing.C b/src/functionObjects/graphics/runTimePostProcessing/runTimePostProcessing.C
index 8d0deb0e2b..128caf7255 100644
--- a/src/functionObjects/graphics/runTimePostProcessing/runTimePostProcessing.C
+++ b/src/functionObjects/graphics/runTimePostProcessing/runTimePostProcessing.C
@@ -42,15 +42,14 @@ License
 #include "vtkSmartPointer.h"
 #include "vtkLight.h"
 
+#include "vtkDummyController.h"
+
 #ifdef FOAM_USING_VTK_MPI
 # include "vtkMPICommunicator.h"
 # include "vtkMPIController.h"
+# include "vtkCompositedSynchronizedRenderers.h"
+# include "vtkSynchronizedRenderWindows.h"
 #endif
-#include "vtkDummyController.h"
-
-#include "vtkSynchronizedRenderWindows.h"
-#include "vtkCompositedSynchronizedRenderers.h"
-
 
 // * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
 
@@ -137,27 +136,21 @@ void Foam::functionObjects::runTimePostProcessing::render
         Log << name() << " render" << endl;
     }
 
-
-    // Normal rendering elements
-    vtkSmartPointer<vtkRenderer> renderer;
-    vtkSmartPointer<vtkRenderWindow> renderWindow;
-
-    // Multi-process synchronization
-    vtkSmartPointer<vtkSynchronizedRenderWindows> syncWindows;
-    vtkSmartPointer<vtkCompositedSynchronizedRenderers> syncRenderers;
-
-
     // Disable any floating point trapping
     // (some low-level rendering functionality does not like it)
 
     sigFpe::ignore sigFpeHandling; //<- disable in local scope
 
 
+    // Normal rendering elements
+    vtkSmartPointer<vtkRenderer> renderer;
+    vtkSmartPointer<vtkRenderWindow> renderWindow;
+
     // Initialise render window
     if (controller || Pstream::master())
     {
-        renderWindow = vtkSmartPointer<vtkRenderWindow>::New();
         renderer = vtkSmartPointer<vtkRenderer>::New();
+        renderWindow = vtkSmartPointer<vtkRenderWindow>::New();
 
         renderWindow->OffScreenRenderingOn();
         renderWindow->SetSize(output_.width_, output_.height_);
@@ -174,15 +167,22 @@ void Foam::functionObjects::runTimePostProcessing::render
         renderWindow->AddRenderer(renderer);
     }
 
-    // Synchronization
+
+    // ---------------------
+    #ifdef FOAM_USING_VTK_MPI
+
+    // Multi-process synchronization
+    vtkSmartPointer<vtkCompositedSynchronizedRenderers> syncRenderers;
+    vtkSmartPointer<vtkSynchronizedRenderWindows> syncWindows;
+
     if (controller)
     {
-        syncWindows =
-            vtkSmartPointer<vtkSynchronizedRenderWindows>::New();
-
         syncRenderers =
             vtkSmartPointer<vtkCompositedSynchronizedRenderers>::New();
 
+        syncWindows =
+            vtkSmartPointer<vtkSynchronizedRenderWindows>::New();
+
         syncWindows->SetRenderWindow(renderWindow);
         syncWindows->SetParallelController(controller);
         syncWindows->SetIdentifier(1);
@@ -193,7 +193,7 @@ void Foam::functionObjects::runTimePostProcessing::render
         syncRenderers->SetRenderer(renderer);
         syncRenderers->SetParallelController(controller);
     }
-
+    #endif
     // ---------------------
 
     scene_.initialise(renderer, output_.name_);