Blender MSFS Blender Exporting Aircraft Exterior "Index group cannot be split"

[FrancisJohannes]

Hi all,
I'm having issues exporting my external model using the Gltf 2.0 exporter for MSFS on Blender.

This is the error I get. I interpreted it as a very large mesh that has to be divided. And I've divided the fuselage into 4 parts and the wings separated as well. I still get the error...

--------blender error message after failed export----------------

bpy.ops.object.select_all(action='SELECT')
bpy.context.space_data.shading.type = 'SOLID'
bpy.ops.object.convert(target='MESH')
bpy.ops.object.parent_clear(type='CLEAR_KEEP_TRANSFORM')
bpy.ops.object.transform_apply(location=True, rotation=True, scale=True)
Saved "citationx.blend"
bpy.ops.object.select_all(action='SELECT')
bpy.context.space_data.recent_folders_active = 0
Python: Traceback (most recent call last):
File "C:\Program Files\Blender Foundation\Blender 2.92\2.92\scripts\addons\io_scene_gltf2_msfs\__init__.py", line 713, in execute
return gltf2_blender_export.save(context, export_settings)
File "C:\Program Files\Blender Foundation\Blender 2.92\2.92\scripts\addons\io_scene_gltf2_msfs\blender\exp\gltf2_blender_export.py", line 49, in save
json, buffer = __export(export_settings)
File "C:\Program Files\Blender Foundation\Blender 2.92\2.92\scripts\addons\io_scene_gltf2_msfs\blender\exp\gltf2_blender_export.py", line 66, in __export
__gather_gltf(exporter, export_settings)
File "C:\Program Files\Blender Foundation\Blender 2.92\2.92\scripts\addons\io_scene_gltf2_msfs\blender\exp\gltf2_blender_export.py", line 111, in __gather_gltf
buffer_views.traverse_scenes(scenes)
File "C:\Program Files\Blender Foundation\Blender 2.92\2.92\scripts\addons\io_scene_gltf2_msfs\io\exp\gltf2_io_asobo_buffer_views.py", line 191, in traverse_scenes
self.__traverse_node(node, lambda node: self.__handle_node(node))
File "C:\Program Files\Blender Foundation\Blender 2.92\2.92\scripts\addons\io_scene_gltf2_msfs\io\exp\gltf2_io_asobo_buffer_views.py", line 194, in __traverse_node
f(node)
File "C:\Program Files\Blender Foundation\Blender 2.92\2.92\scripts\addons\io_scene_gltf2_msfs\io\exp\gltf2_io_asobo_buffer_views.py", line 191, in <lambda>
self.__traverse_node(node, lambda node: self.__handle_node(node))
File "C:\Program Files\Blender Foundation\Blender 2.92\2.92\scripts\addons\io_scene_gltf2_msfs\io\exp\gltf2_io_asobo_buffer_views.py", line 207, in __handle_node
self.__handle_mesh(node.mesh, is_skinned_mesh)
File "C:\Program Files\Blender Foundation\Blender 2.92\2.92\scripts\addons\io_scene_gltf2_msfs\io\exp\gltf2_io_asobo_buffer_views.py", line 382, in __handle_mesh
primitive, is_skinned
File "C:\Program Files\Blender Foundation\Blender 2.92\2.92\scripts\addons\io_scene_gltf2_msfs\io\exp\gltf2_io_asobo_buffer_views.py", line 294, in split_primitive
indices, primitive.extras["ASOBO_primitive"]["BaseVertexIndex"]
File "C:\Program Files\Blender Foundation\Blender 2.92\2.92\scripts\addons\io_scene_gltf2_msfs\io\exp\gltf2_io_asobo_buffer_views.py", line 260, in split_indices
"Index group cannot be split. You can try dividing the mesh into multiple meshes. This will be fixed in a future version of the exporter."
RuntimeError: Index group cannot be split. You can try dividing the mesh into multiple meshes. This will be fixed in a future version of the exporter.

location: <unknown location>:-1
----------------------------------------------------end of message--------

Any tips? Thank you.