diff --git a/src/core/inspector/input.js b/src/core/inspector/input.js
index 5c42ce55..dc2d6b1f 100755
--- a/src/core/inspector/input.js
+++ b/src/core/inspector/input.js
@@ -48,13 +48,14 @@ InspectorInput.prototype.onKeyUp = function(event, press) {
     }
 
     var map = this.core.getMap();
-    var debug = map.draw.debug;
     var inspector = this.inspector;
 
     if (map == null) {
         return;
     }
 
+    var debug = map.draw.debug;
+
     this.altDown = event.altKey;
     this.ctrlDown = event.ctrlKey;
     this.shiftDown = event.shiftKey;
diff --git a/src/core/map/draw-tiles.js b/src/core/map/draw-tiles.js
index 7d85b527..5f9d3cca 100755
--- a/src/core/map/draw-tiles.js
+++ b/src/core/map/draw-tiles.js
@@ -628,6 +628,10 @@ MapDrawTiles.prototype.getTileTextureTransform = function(sourceTile, targetTile
 MapDrawTiles.prototype.updateTileSurfaceBounds = function(tile, submesh, surface, bound, fullUpdate) {
     var path, extraBound, layer, texture;
 
+    if (tile.id[0] == 18 && tile.id[1] == 70930 && tile.id[2] == 44286) {
+        tile = tile;
+    }
+
     //search map view
     if (surface.boundLayerSequence.length > 0) {
         if (fullUpdate) {
diff --git a/src/core/map/geodata-processor/worker-linestring.js b/src/core/map/geodata-processor/worker-linestring.js
index 62cc2490..72674c34 100755
--- a/src/core/map/geodata-processor/worker-linestring.js
+++ b/src/core/map/geodata-processor/worker-linestring.js
@@ -26,7 +26,7 @@ var processLineStringPass = function(lineString, lod, style, zIndex, eventInfo)
         return;
     }
 
-    var dlines = (lineString['lines']) ? true : false;
+    var dlines = (lineString['d-lines']) ? true : false;
     var line = getLayerPropertyValue(style, 'line', lineString, lod);
     var lineLabel = getLayerPropertyValue(style, 'line-label', lineString, lod);
 
@@ -503,11 +503,13 @@ var processLineStringPass = function(lineString, lod, style, zIndex, eventInfo)
                 lineLabelPoints2[li - i - 1] = p;
             }
     
-            if (dlines) {
-                p2 = points[i+1];
-                p1 = [p1[0] + p2[0], p1[1] + p2[1], p1[2] + p2[2]];
-            } else {
-                p1 = points[i+1];
+            if ((i + 1) < li) {
+                if (dlines) {
+                    p2 = points[i+1];
+                    p1 = [p1[0] + p2[0], p1[1] + p2[1], p1[2] + p2[2]];
+                } else {
+                    p1 = points[i+1];
+                }
             }
         }
 
diff --git a/src/core/map/geodata-processor/worker-pointarray.js b/src/core/map/geodata-processor/worker-pointarray.js
index 944a1b9c..eed70406 100755
--- a/src/core/map/geodata-processor/worker-pointarray.js
+++ b/src/core/map/geodata-processor/worker-pointarray.js
@@ -241,11 +241,13 @@ var processPointArrayPass = function(pointArray, lod, style, zIndex, eventInfo)
                     }
                 }
         
-                if (dpoints) {
-                    var p2 = points[i+1];
-                    p1 = [p1[0] + p2[0], p1[1] + p2[1], p1[2] + p2[2]];
-                } else {
-                    p1 = points[i+1];
+                if ((i + 1) < li) {
+                    if (dpoints) {
+                        var p2 = points[i+1];
+                        p1 = [p1[0] + p2[0], p1[1] + p2[1], p1[2] + p2[2]];
+                    } else {
+                        p1 = points[i+1];
+                    }
                 }
             }
         }
diff --git a/src/core/renderer/draw.js b/src/core/renderer/draw.js
index efa9f71a..6222c18b 100755
--- a/src/core/renderer/draw.js
+++ b/src/core/renderer/draw.js
@@ -661,12 +661,12 @@ RendererDraw.prototype.drawGpuJobs = function() {
         if (onlyHitLayers) {
             for (j = 0; j < lj; j++) {
                 if (buffer[j].hitable) {
-                    this.drawGpuJob(gpu, gl, this, buffer[j], screenPixelSize);
+                    this.drawGpuJob(gpu, gl, renderer, buffer[j], screenPixelSize);
                 }
             }
         } else {
             for (j = 0; j < lj; j++) {
-                this.drawGpuJob(gpu, gl, this, buffer[j], screenPixelSize);
+                this.drawGpuJob(gpu, gl, renderer, buffer[j], screenPixelSize);
                 //buffer[j] = null;
             }
         }