PSA Export:

* Actions with no f-curve data will not be automatically selected for export

PSK Export:
* Now enforcing a rule that the mesh's armature modifier must be the last in the stack (if it isn't, mesh skinning will be absent in resultant PSK)
* Fixed a crash that would occur when attempting to attempt to export a mesh with an empty material slot

io_export_psk_psa/psa/operator.py

@@ -56,8 +56,9 @@ class PsaExportOperator(Operator, ExportHelper):
         row.template_list('PSA_UL_ActionList', 'asd', scene, 'psa_action_list', scene, 'psa_action_list_index', rows=len(context.scene.psa_action_list))
 
     def is_action_for_armature(self, action):
+        if len(action.fcurves) == 0:
+            return False
         bone_names = [x.name for x in self.armature.data.bones]
-        print(bone_names)
         for fcurve in action.fcurves:
             match = re.match('pose\.bones\["(.+)"\].\w+', fcurve.data_path)
             if not match: