diff --git a/SuperScriptViewer/DecoratorCore.py b/SuperScriptViewer/DecoratorCore.py
index d1920b5..9f90a15 100644
--- a/SuperScriptViewer/DecoratorCore.py
+++ b/SuperScriptViewer/DecoratorCore.py
@@ -145,13 +145,12 @@ def buildBlock(exDb, deDb, target, currentGraphBlockCell):
         else:
             layer_height[curLayer] = max(layer_height.get(curLayer, 0), bbResult[i].height)
     layer_height[arrangedLayer] = layer_height.get(arrangedLayer, 0) # make sure misc bb height exist
-    for i in occupiedLayerCountForSpecificBB.keys():   # add oper occipation
-        layer_height[i] += (occupiedLayerCountForSpecificBB[i] + 1) * dcv.GRAPH_SPAN_BB_POPER
 
     # calc bb Y
     baseY = dcv.GRAPH_CONTENTOFFSET_Y
     for i in range(arrangedLayer + 1):
         baseY += layer_height[i] + dcv.GRAPH_LAYER_SPAN
+        baseY += occupiedLayerCountForSpecificBB.get(i, 0) * dcv.GRAPH_SPAN_BB_POPER    # add oper occipation
         layer_y[i] = baseY
     for i in bbResult.keys():
         cache = bbResult[i]
diff --git a/SuperScriptViewer/SuperScriptViewer.py b/SuperScriptViewer/SuperScriptViewer.py
index bd898c7..07388bc 100644
--- a/SuperScriptViewer/SuperScriptViewer.py
+++ b/SuperScriptViewer/SuperScriptViewer.py
@@ -4,7 +4,7 @@ import os
 import sys
 
 # debug use
-# os.remove('decorate.db')
+os.remove('decorate.db')
 
 print('Super Script View')
 if not os.path.isfile("decorate.db"):