Blenderでexportエラー対応のメモ

BlenderでArray modifierを使ったモデルをFBXにexportしようとしたら、以下のエラー

Python: Traceback (most recent call last):
  File "/snap/blender/111/2.92/scripts/addons/io_scene_fbx/__init__.py", line 644, in execute
    return export_fbx_bin.save(self, context, **keywords)
  File "/snap/blender/111/2.92/scripts/addons/io_scene_fbx/export_fbx_bin.py", line 3198, in save
    ret = save_single(operator, context.scene, depsgraph, filepath, **kwargs_mod)
  File "/snap/blender/111/2.92/scripts/addons/io_scene_fbx/export_fbx_bin.py", line 3094, in save_single
    fbx_objects_elements(root, scene_data)
  File "/snap/blender/111/2.92/scripts/addons/io_scene_fbx/export_fbx_bin.py", line 2894, in fbx_objects_elements
    fbx_data_mesh_elements(objects, me_obj, scene_data, done_meshes)
  File "/snap/blender/111/2.92/scripts/addons/io_scene_fbx/export_fbx_bin.py", line 1174, in fbx_data_mesh_elements
    elem_data_single_int32_array(lay_uv, b"UVIndex", (uv2idx[uv_id] for uv_id in _uvtuples_gen(t_luv, t_lvidx)))
  File "/snap/blender/111/2.92/scripts/addons/io_scene_fbx/fbx_utils.py", line 504, in elem_data_single_int32_array
    return _elem_data_single(elem, name, value, "add_int32_array")
  File "/snap/blender/111/2.92/scripts/addons/io_scene_fbx/fbx_utils.py", line 451, in _elem_data_single
    getattr(sub_elem, func_name)(value)
  File "/snap/blender/111/2.92/scripts/addons/io_scene_fbx/encode_bin.py", line 161, in add_int32_array
    data = array.array(data_types.ARRAY_INT32, data)
  File "/snap/blender/111/2.92/scripts/addons/io_scene_fbx/export_fbx_bin.py", line 1174, in <genexpr>
    elem_data_single_int32_array(lay_uv, b"UVIndex", (uv2idx[uv_id] for uv_id in _uvtuples_gen(t_luv, t_lvidx)))
KeyError: ((nan, nan), 4)

location: <unknown location>:-1

UV展開がおかしいらしく、以下の手順でひとまずでexportできた。

対象オブジェクト選択
↓
Editモードからすべてを選択
↓
UV
↓
スマートUV投影
↓
OKを選択