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Active Shape Key Lock cause Blender crash while using Mesh Filter, Move, Rotate, Scale, Transform tools.
Closed, ResolvedPublicBUG


Operating system: Microsoft Windows 10 Pro (Version 10.0.17134 Build 17134)
Graphics card: NVIDIA GeForce GTX 1060 (GeForce Game Ready Driver Version 451.67)

Blender 2.83.4 LTS, Factory setting and Factory Preferences.

Under condition of:

  • Adding a shape key and toggle Shape Key Lock on. In Sculpt mode, using Mesh Filter, Move, Rotate, Scale or Transform tools will cause Blender crash.
  • The video show an example of using Mesh Filter tool to make Blender crash. This will happen when Shape Key Lock is toggle on.

Event Timeline

Philipp Oeser (lichtwerk) changed the task status from Needs Triage to Confirmed.Aug 7 2020, 2:44 PM
Philipp Oeser (lichtwerk) changed the subtype of this task from "Report" to "Bug".

Can confirm, checking...

SculptSession->orig_cos are NULL here

1 __memmove_avx_unaligned_erms                           0x7ffff79335f3 
2 SCULPT_flush_stroke_deform   sculpt.c             5919 0x419743b      
3 sculpt_mesh_filter_modal     sculpt_filter_mesh.c 531  0x41b7150      
4 wm_handler_operator_call     wm_event_system.c    2018 0x36bc170      
5 wm_handlers_do_intern        wm_event_system.c    2802 0x36be572      
6 wm_handlers_do               wm_event_system.c    2850 0x36be6a0      
7 wm_event_do_handlers         wm_event_system.c    3275 0x36bf980      
8 WM_main                      wm.c                 475  0x36b424f      
9 main                         creator.c            546  0x327e593