Spot elevations by point

Hi guys,

im trying to place spot elevations by point. some how im able to get it right for one point but the other does not work. do you have any ideas guys?

import clr
clr.AddReference(‘RevitAPI’)
from Autodesk.Revit.DB import *

clr.AddReference(“RevitNodes”)
import Revit
clr.ImportExtensions(Revit.GeometryConversion)

clr.AddReference(“RevitServices”)
import RevitServices
from RevitServices.Persistence import DocumentManager
from RevitServices.Transactions import TransactionManager

doc = DocumentManager.Instance.CurrentDBDocument
views = UnwrapElement(IN[0])
pts = UnwrapElement(IN[1])
bend = UnwrapElement(IN[2])
end = UnwrapElement(IN[3])
leader = UnwrapElement(IN[4])
isoview = UnwrapElement(IN[5])
intsecvec = UnwrapElement(IN[6])
elementlist =

i = 0;
TransactionManager.Instance.EnsureInTransaction(doc)
for pt in pts:
view = views[i]
pt = pt.ToXyz()
refintsec = ReferenceIntersector(isoview)
refintsec.TargetType = FindReferenceTarget.All
try:
ref = refintsec.FindNearest(pt,intsecvec[i].AsPoint().ToXyz()).GetReference()
elementlist.append(doc.Create.NewSpotElevation(view, ref, pt, pt.Add(bend.AsPoint().ToXyz()), pt.Add(end.AsPoint().ToXyz()), pt, leader))
except:
elementlist.append(None)
i += 1
TransactionManager.Instance.TransactionTaskDone()

OUT = elementlist