diff --git a/NNLocal.bi b/NNLocal.bi
index cbddf73..3b3b0cb 100644
--- a/NNLocal.bi
+++ b/NNLocal.bi
@@ -432,6 +432,9 @@ sub apply_block_properties
 					end if
 				end if
 			wend
+			if TestGrade < 0 then
+				.CalcedInvulnerable = -1
+			end if
 
 			if .CanRegen > 0 then
 				for CID as ubyte = 1 to BlockBrushes
diff --git a/Nebunoid.bas b/Nebunoid.bas
index 49e2e52..fddb118 100644
--- a/Nebunoid.bas
+++ b/Nebunoid.bas
@@ -36,7 +36,7 @@ if ScreenCreated = 0 OR FileExists("FS.ini") then
 		bload(MasterDir+"/gfx/banner.bmp",TitleBanner)
 	end if
 end if
-windowtitle "Nebunoid 1.09b"
+windowtitle "Nebunoid 1.10"
 
 'Foreground assets
 load_brick_gfx(MasterDir+"/gfx/blocks/")
diff --git a/Nebunoid.bi b/Nebunoid.bi
index ce323c8..9b64a83 100644
--- a/Nebunoid.bi
+++ b/Nebunoid.bi
@@ -195,7 +195,7 @@ type PalleteSpecs
 	HitDegrade as byte
 	ZapDegrade as short
 	IncreaseSpeed as ubyte
-	CalcedInvulnerable as ubyte
+	CalcedInvulnerable as byte
 	UsedInlevel as ubyte
 	TimesRespawned as ushort
 end type
@@ -883,7 +883,7 @@ function disp_wall(FrameTick as short, DispSetting as byte = 0) as integer
 											RefPallete = PlayerSlot(Player).TileSet(XDID,YDID).BrickID
 											
 											if RefPallete > 0 OR (XDID = XID AND YDID = YID) then
-												if (RefPallete > 0 AND Pallete(RefPallete).HitDegrade >= 0) OR _
+												if (RefPallete > 0 AND Pallete(RefPallete).CalcedInvulnerable >= 0) OR _
 													(XDID = XID AND YDID = YID) then
 													
 													if TotalBC > 0 then
diff --git a/campaigns/official/universe/L11.txt b/campaigns/official/universe/L11.txt
index 58bfd2c..0590f76 100644
--- a/campaigns/official/universe/L11.txt
+++ b/campaigns/official/universe/L11.txt
@@ -34,25 +34,25 @@ Brush 5 Increase Spd  := FALSE
 Level Grid  11111111112
    12345678901234567890
 -----------------------
- 1|                55  
- 2|  55            515 
- 3| 515     5       55 
- 4| 55     515         
+ 1|      5     55  55  
+ 2|  55 55      55 525 
+ 3| 525  5  5    5  55 
+ 4| 55     525         
  5|         5          
  6|  5          555    
- 7| 515   5    5115    
- 8|  5   515    555    
- 9|       5   5        
-10|          515       
+ 7| 525   5    5225    
+ 8|  5    55    555    
+ 9|      55   5        
+10|          525       
 11|  55       5    5   
-12|  515     5    515  
-13|  55     515    5   
+12|  525     5    5255 
+13|  55     525    5   
 14|     5    5         
-15|  5 515     5   5   
-16| 515 5     515 515  
-17| 555        5  555  
-18|                    
-19|11111111111111111111
+15|  5 525     5   5   
+16| 525 5      55 525  
+17| 555    5   5  555  
+18|       555  5       
+19|5     55 55        5
 20|55555555555555555555
 
 ================================================================================