diff --git a/player/js/utils/PropertyFactory.js b/player/js/utils/PropertyFactory.js
index a1b500f..2daf5f4 100644
--- a/player/js/utils/PropertyFactory.js
+++ b/player/js/utils/PropertyFactory.js
@@ -370,9 +370,9 @@
         var i, len = data.k.length;
         var s, e,to,ti;
         for (i = 0; i < len - 1; i += 1) {
-            if (data.k[i].to && data.k[i].s && data.k[i].e) {
+            if (data.k[i].to && data.k[i].s && data.k[i + 1] && data.k[i + 1].s) {
                 s = data.k[i].s;
-                e = data.k[i].e;
+                e = data.k[i + 1].s;
                 to = data.k[i].to;
                 ti = data.k[i].ti;
                 if((s.length === 2 && !(s[0] === e[0] && s[1] === e[1]) && bez.pointOnLine2D(s[0],s[1],e[0],e[1],s[0] + to[0],s[1] + to[1]) && bez.pointOnLine2D(s[0],s[1],e[0],e[1],e[0] + ti[0],e[1] + ti[1])) || (s.length === 3 && !(s[0] === e[0] && s[1] === e[1] && s[2] === e[2]) && bez.pointOnLine3D(s[0],s[1],s[2],e[0],e[1],e[2],s[0] + to[0],s[1] + to[1],s[2] + to[2]) && bez.pointOnLine3D(s[0],s[1],s[2],e[0],e[1],e[2],e[0] + ti[0],e[1] + ti[1],e[2] + ti[2]))){