Fix dual-extrusion with different model heights.

diff --git a/Cura/slice/__main__.py b/Cura/slice/__main__.py
index 6c020577f102dee21a2aceec511bbe93cb93c221..1de400f210b3ebbe20f9df620f557bf6252ca392 100644 (file)
--- a/Cura/slice/__main__.py
+++ b/Cura/slice/__main__.py
@@ -173,8 +173,9 @@ def stitchMultiExtruder(outputList, resultFile):
 
                                startSlice = outputSlice[n][0]
                                endSlice = outputSlice[n][1]
+
                                currentE = 0
-                               while not isPrintingLine(outputList[n][startSlice]):
+                               while startSlice < len(outputList[n]) and not isPrintingLine(outputList[n][startSlice]):
                                        currentE = getCodeFloat(outputList[n][startSlice], 'E', currentE)
                                        currentX = getCodeFloat(outputList[n][startSlice], 'X', currentX)
                                        currentY = getCodeFloat(outputList[n][startSlice], 'Y', currentY)