diff --git a/src/main/java/mekanism/client/render/RenderPartTransmitter.java b/src/main/java/mekanism/client/render/RenderPartTransmitter.java
index 03362b071..b88ed0a98 100644
--- a/src/main/java/mekanism/client/render/RenderPartTransmitter.java
+++ b/src/main/java/mekanism/client/render/RenderPartTransmitter.java
@@ -630,6 +630,11 @@ public class RenderPartTransmitter implements IIconSelfRegister
 
 	public void renderTransparency(IIcon icon, CCModel cc, Colour color)
 	{
+		if(icon == null)
+		{
+			return;
+		}
+		
 		if(color != null)
 		{
 			cc.render(new IconTransformation(icon), new ColourMultiplier(color.rgba()));
diff --git a/src/main/java/mekanism/common/content/entangloporter/InventoryFrequency.java b/src/main/java/mekanism/common/content/entangloporter/InventoryFrequency.java
index c769bd490..9dbf0ec6a 100644
--- a/src/main/java/mekanism/common/content/entangloporter/InventoryFrequency.java
+++ b/src/main/java/mekanism/common/content/entangloporter/InventoryFrequency.java
@@ -90,7 +90,7 @@ public class InventoryFrequency extends Frequency
 		
 		if(nbtTags.hasKey("storedItem"))
 		{
-			storedItem.readFromNBT(nbtTags.getCompoundTag("storedItem"));
+			storedItem = ItemStack.loadItemStackFromNBT(nbtTags.getCompoundTag("storedItem"));
 		}
 		
 		temperature = nbtTags.getDouble("temperature");
diff --git a/src/main/java/mekanism/common/tile/TileEntityPRC.java b/src/main/java/mekanism/common/tile/TileEntityPRC.java
index c0fea36e5..a220cf3f2 100644
--- a/src/main/java/mekanism/common/tile/TileEntityPRC.java
+++ b/src/main/java/mekanism/common/tile/TileEntityPRC.java
@@ -76,6 +76,8 @@ public class TileEntityPRC extends TileEntityBasicMachine<PressurizedInput, Pres
 		inventory = new ItemStack[4];
 
 		upgradeComponent = new TileComponentUpgrade(this, 3);
+		upgradeComponent.setSupported(Upgrade.MUFFLING);
+		
 		ejectorComponent = new TileComponentEjector(this);
 		ejectorComponent.setOutputData(TransmissionType.ITEM, configComponent.getOutputs(TransmissionType.ITEM).get(3));
 		ejectorComponent.setOutputData(TransmissionType.GAS, configComponent.getOutputs(TransmissionType.GAS).get(2));