PolyPen: Unhandled Exception Caught: Exception caught

[Lerklutten]

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Issue Template

Issue:
Environment:

• RetopoFlow: 3.4.3
• Build: CG Cookie built for Blender Market
• Blender: 5.00.1 blender-v5.0-release 2025-12-15
• Platform: Windows, 10, 10.0.26200, AMD64, AMD64 Family 25 Model 97 Stepping 2, AuthenticAMD
• GPU: {'backend': 'OPENGL', 'device': 'NVIDIA', 'vendor': 'NVIDIA Corporation', 'renderer': 'NVIDIA GeForce RTX 4070 Ti SUPER/PCIe/SSE2', 'version': '4.6.0 NVIDIA 591.59', 'compute_shader_support_get': True, 'hdr_support_get': False, 'max_batch_indices_get': 1048576, 'max_batch_vertices_get': 1048576, 'max_images_get': 8, 'max_texture_layers_get': 2048, 'max_texture_size_get': 32768, 'max_textures_frag_get': 32, 'max_textures_geom_get': 32, 'max_textures_get': 192, 'max_textures_vert_get': 32, 'max_uniforms_frag_get': 4096, 'max_uniforms_vert_get': 4096, 'max_varying_floats_get': 124, 'max_vertex_attribs_get': 16, 'shader_image_load_store_support_get': True}
• Timestamp: 2026-01-17 13:27:29.782975

Runtime:

• Undo:
• Error Hash: 28cf64e2ba8a573f81acf8a1bf755c82

Trace:

• EXCEPTION (<class 'ReferenceError'>): BMesh data of type BMVert has been removed

• C:\Users\zoe\AppData\Roaming\Blender Foundation\Blender\5.0\scripts\addons\retopoflow\retopoflow\rfmesh\rfmesh_wrapper.py
  

• 000 0120:select() return self.bmelem.select and not self.bmelem.hide

• C:\Users\zoe\AppData\Roaming\Blender Foundation\Blender\5.0\scripts\addons\retopoflow\retopoflow\rftool_polypen\polypen.py
  

• 001 0131:main() if self.nearest_geom and self.nearest_geom.select:

• .../common\fsm.py
  

• 002 0169:wrapped() return fn(*args, **kwargs)

{add any screenshots of the issue here}

How to Reproduce:

• {add your list replication steps}

{attach any files needed to replicate the issue}

Automatically Generated Info

Environment:

- RetopoFlow: 3.4.3
- Build: CG Cookie built for Blender Market
- Blender: 5.00.1 blender-v5.0-release 2025-12-15
- Platform: Windows, 10, 10.0.26200, AMD64, AMD64 Family 25 Model 97 Stepping 2, AuthenticAMD
- GPU: {'backend': 'OPENGL', 'device': 'NVIDIA', 'vendor': 'NVIDIA Corporation', 'renderer': 'NVIDIA GeForce RTX 4070 Ti SUPER/PCIe/SSE2', 'version': '4.6.0 NVIDIA 591.59', 'compute_shader_support_get': True, 'hdr_support_get': False, 'max_batch_indices_get': 1048576, 'max_batch_vertices_get': 1048576, 'max_images_get': 8, 'max_texture_layers_get': 2048, 'max_texture_size_get': 32768, 'max_textures_frag_get': 32, 'max_textures_geom_get': 32, 'max_textures_get': 192, 'max_textures_vert_get': 32, 'max_uniforms_frag_get': 4096, 'max_uniforms_vert_get': 4096, 'max_varying_floats_get': 124, 'max_vertex_attribs_get': 16, 'shader_image_load_store_support_get': True}
- Timestamp: 2026-01-17 13:27:29.782975

Runtime:

- Undo: 
- Error Hash: 28cf64e2ba8a573f81acf8a1bf755c82

Trace:

- EXCEPTION (<class 'ReferenceError'>): BMesh data of type BMVert has been removed
-     C:\Users\zoe\AppData\Roaming\Blender Foundation\Blender\5.0\scripts\addons\retopoflow\retopoflow\rfmesh\rfmesh_wrapper.py
- 000 0120:select() return self.bmelem.select and not self.bmelem.hide
-     C:\Users\zoe\AppData\Roaming\Blender Foundation\Blender\5.0\scripts\addons\retopoflow\retopoflow\rftool_polypen\polypen.py
- 001 0131:main() if self.nearest_geom and self.nearest_geom.select:
-     .../common\fsm.py
- 002 0169:wrapped() return fn(*args, **kwargs)