diff --git a/korman/exporter/animation.py b/korman/exporter/animation.py
index b8e1d54..7e961dc 100644
--- a/korman/exporter/animation.py
+++ b/korman/exporter/animation.py
@@ -14,6 +14,7 @@
 #    along with Korman.  If not, see <http://www.gnu.org/licenses/>.
 
 import bpy
+import itertools
 import math
 import mathutils
 from PyHSPlasma import *
@@ -54,8 +55,12 @@ class AnimationConverter:
         # a lot of temporary objects, but until I see profiling results that this is terrible, I prefer
         # to have code that makes sense.
         keyframes = []
-        for pos, scale in zip(pos_keyframes, scale_keyframes):
-            if pos.frame_num == scale.frame_num:
+        for pos, scale in itertools.zip_longest(pos_keyframes, scale_keyframes, fillvalue=None):
+            if pos is None:
+                keyframes.append((None, scale))
+            elif scale is None:
+                keyframes.append((pos, scale))
+            elif pos.frame_num == scale.frame_num:
                 keyframes.append((pos, scale))
             elif pos.frame_num < scale.frame_num:
                 keyframes.append((pos, None))
diff --git a/korman/exporter/material.py b/korman/exporter/material.py
index b460791..563151d 100644
--- a/korman/exporter/material.py
+++ b/korman/exporter/material.py
@@ -349,8 +349,8 @@ class MaterialConverter:
         return None
 
     def _export_layer_transform_animation(self, bm, tex_slot, base_layer, fcurves):
-        pos_fcurves = (i for i in fcurves if i.data_path.find("offset") != -1)
-        scale_fcurves = (i for i in fcurves if i.data_path.find("scale") != -1)
+        pos_fcurves = [i for i in fcurves if i.data_path.find("offset") != -1]
+        scale_fcurves = [i for i in fcurves if i.data_path.find("scale") != -1]
 
         # Plasma uses the controller to generate a matrix44... so we have to produce a leaf controller
         ctrl = self._exporter().animation.make_matrix44_controller(pos_fcurves, scale_fcurves, tex_slot.offset, tex_slot.scale)