Version 11.4.1 - fixed potential crashes during animation export.

Author: Nusiq

fake_bpy_modules/bpy/types/__init__.pyi

@@ -63342,7 +63342,7 @@ class Action(ID, bpy_struct):
     :type: mathutils.Vector
     """
 
-    fcurves: ActionFCurves
+    fcurves: ActionFCurves | None
     """ The individual F-Curves that make up the action
 
     :type: ActionFCurves

mcblend/__init__.py

@@ -118,7 +118,7 @@
     "author": "Artur",
     "description": "An addon that allows to design and animate Minecraft Bedrock Edition models",
     "blender": (4, 2, 0),
-    "version": (11, 4, 0),  # Remember to update the version in the "docs/conf.py"
+    "version": (11, 4, 1),  # Remember to update the version in the "docs/conf.py"
     "location": "",
     "warning": "",
     "category": "Object"

mcblend/operator_func/animation.py

@@ -261,7 +261,8 @@ def _add_keyframe_data(
                 cycle_length = limit_up - limit_down
                 scaled_cycle_length = cycle_length * scale
                 repeat =  strip.repeat
-                for (keyframe, bone_state) in sorted(strip_action_keyframes):
+                for (keyframe, bone_state) in sorted(
+                        strip_action_keyframes, key=lambda x: x[0]):
                     if keyframe < limit_down or keyframe > limit_up:
                         continue
                     transformed_keyframe_base = keyframe * scale
@@ -294,7 +295,7 @@ def _get_keyframes_and_bone_states(
         pattern = re.compile(
             r'pose\.bones\[(?:\'|")([^\]]+)(?:\'|")\]\.([a-zA-Z0-9_]+)')
         if action.fcurves is None:  # type: ignore
-            return set()
+            return []
         result: List[TimeNameTypeInterpolation] = []
         for fcurve in action.fcurves:
             if fcurve.keyframe_points is None:  # type: ignore