It seems to work now

geo/Mesh.js

@@ -81,19 +81,7 @@ mesh.Mesh.prototype.addNormal = function(normal) {
 }
 
 mesh.Mesh.prototype.isFinished = function() {
-    // return this.faceIndex === this.faces.length;
-
-    for (var i = 0; i < this.faces.length; i++) {
-
-        if (!(this.faces[i].sent)) {
-
-            return false;
-
-        }
-
-    }
-
-    return true;
+    return this.faceIndex === this.faces.length;
 }
 
 // Vertex

geo/MeshStreamer.js

@@ -85,13 +85,13 @@ geo.MeshStreamer.prototype.loadFromFile = function(path, callback) {
                 // Create faces (two if Face4)
                 var faces = currentMesh.addFaces(line);
 
-                faces[0].index = currentMesh.faces.length - (faces.length === 2 ? 1 : 2);
+                faces[0].index = self.faces.length;
                 faces[0].meshIndex = self.meshes.length - 1;
                 self.faces.push(faces[0]);
 
                 if (faces.length === 2) {
 
-                    faces[1].index = currentMesh.faces.length - 1;
+                    faces[1].index = self.faces.length;
                     faces[1].meshIndex = self.meshes.length - 1;
                     self.faces.push(faces[1]);
 
@@ -189,9 +189,10 @@ geo.MeshStreamer.prototype.nextElements = function(_camera) {
         z: camera.target.z - camera.position.z
     }
 
-    var sent = 0;;
+    var sent = 0;
     var data = [];
 
+
     var mightBeCompletetlyFinished = true;
 
     for (var meshIndex = 0; meshIndex < this.meshes.length; meshIndex++) {