WP8 - Out of memory on Image load, discard

Import mojo

Function Main()
	New ImageLoadTest()
End

Class ImageLoadTest Extends App

	Private Field testImage:Image
	Private Field imageLoadCounter:Int
	
	Public Method OnCreate()
		SetUpdateRate(60)
		
		testImage = Null
		imageLoadCounter = 0
	End
	
	Public Method OnUpdate()
		' Load testImage.png every second frame
		' Discard testImage.png every other frame
		If (testImage)
			testImage.Discard()
			testImage = Null
		Else
			testImage = LoadImage("testImage.png", 1, Image.MidHandle)
			imageLoadCounter += 1
		EndIf
	End
	
	Public Method OnRender()
		Cls()
		SetColor(0, 255, 0)
		DrawText("Image load count: " + imageLoadCounter, 0, 10)
	End
End

GC_REMOVE_NODE( p );
6A73EE78  ldr         r3,[sp,#p]  
6A73EE7A  adds        r1,r3,#4  
6A73EE7C  ldr         r3,[sp,#p]  
6A73EE7E  adds        r3,r3,#8  
6A73EE80  ldr         r3,[r3]  
6A73EE82  adds        r2,r3,#4  
6A73EE84  ldr         r3,[r1]  
6A73EE86  str         r3,[r2]   <<<<<<<<<<<<<<<<<<Points Here
6A73EE88  ldr         r3,[sp,#p]  
6A73EE8A  add         r1,r3,#8  
6A73EE8E  ldr         r3,[sp,#p]  
6A73EE90  adds        r3,r3,#4  
6A73EE92  ldr         r3,[r3]  
6A73EE94  add         r2,r3,#8  
6A73EE98  ldr         r3,[r1]  
6A73EE9A  str         r3,[r2]