Merge branch 'blender-v5.1-release'

lib/linux_x64

@@ -1 +1 @@
-Subproject commit 4823633a900ec280dfa89bfa4a63a1585b1219df
+Subproject commit 70f181411c1ff25e44fc45efe222959eb17e5948

scripts/addons_core/io_scene_gltf2/__init__.py

@@ -7,7 +7,7 @@ bl_info = {
     # This is now displayed as the maintainer, so show the foundation.
     # "author": "Julien Duroure, Scurest, Norbert Nopper, Urs Hanselmann, Moritz Becher, Benjamin Schmithüsen, Jim Eckerlein", # Original Authors
     'author': "Blender Foundation, Khronos Group",
-    "version": (5, 2, 1),
+    "version": (5, 2, 2),
     'blender': (4, 4, 0),
     'location': 'File > Import-Export',
     'description': 'Import-Export as glTF 2.0',

scripts/addons_core/io_scene_gltf2/blender/exp/animation/action.py

@@ -856,6 +856,13 @@ def __get_blender_actions(obj_uuid: str,
                             id(item.action) for item in bpy.data.scenes[0].gltf_action_filter if item.keep is False]:
                         continue  # We ignore this action
 
+                    # Check that a slot is assigned to the strip
+                    if strip.action_slot is None:
+                        export_settings['log'].warning(
+                            "Strip '{}' on track '{}' has no action slot assigned, and will be ignored.".format(
+                                strip.name, track.name))
+                        continue
+
                     # Store Action info
                     new_action = ActionData(strip.action)
                     new_action.add_slot(strip.action_slot, strip.action_slot.target_id_type, track.name)