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2.8: crashed and now it crashes Blender immediately on Load
Open, Needs Triage by DeveloperPublic


I was editing a file (see drop-box link below) and it crashed. Now, when I try to load the file, blender instantly crashes. I am using the latest (today's build). There was no sign of an error previously, nor any message displayed.

IDK if I am allowed to do this--but I am posting this here in the hopes of (a) getting help recovering a couple days of work and (b) making Blender better.



Event Timeline

When opening the file with compiled source code in debug mode It throws the exception

Exception thrown: read access violation.
**v2** was 0x2BB87012D448. occurred

Call stack (VS Code / Windows 10)

blender.exe!BM_edge_create(BMesh * bm, BMVert * v1, BMVert * v2, const BMEdge * e_example, const eBMCreateFlag create_flag) Line 152 (g:\bdev\blender\source\blender\bmesh\intern\bmesh_core.c:152)
blender.exe!BM_mesh_bm_from_me(BMesh * bm, const Mesh * me, const BMeshFromMeshParams * params) Line 351 (g:\bdev\blender\source\blender\bmesh\intern\bmesh_mesh_conv.c:351)
blender.exe!BKE_mesh_to_bmesh_ex(const Mesh * me, const BMeshCreateParams * create_params, const BMeshFromMeshParams * convert_params) Line 725 (g:\bdev\blender\source\blender\blenkernel\intern\mesh.c:725)
blender.exe!applyModifier(ModifierData * md, const ModifierEvalContext * ctx, Mesh * mesh) Line 113 (g:\bdev\blender\source\blender\modifiers\intern\MOD_bevel.c:113)
blender.exe!modwrap_applyModifier(ModifierData * md, const ModifierEvalContext * ctx, Mesh * me) Line 896 (g:\bdev\blender\source\blender\blenkernel\intern\modifier.c:896)
blender.exe!mesh_calc_modifiers(Depsgraph * depsgraph, Scene * scene, Object * ob, int useDeform, const bool need_mapping, const CustomData_MeshMasks * dataMask, const int index, const bool use_cache, Mesh * * r_deform, Mesh * * r_final) Line 1408 (g:\bdev\blender\source\blender\blenkernel\intern\DerivedMesh.c:1408)
blender.exe!mesh_build_data(Depsgraph * depsgraph, Scene * scene, Object * ob, const CustomData_MeshMasks * dataMask, const bool need_mapping) Line 2012 (g:\bdev\blender\source\blender\blenkernel\intern\DerivedMesh.c:2012)
blender.exe!makeDerivedMesh(Depsgraph * depsgraph, Scene * scene, Object * ob, BMEditMesh * em, const CustomData_MeshMasks * dataMask) Line 2126 (g:\bdev\blender\source\blender\blenkernel\intern\DerivedMesh.c:2126)
blender.exe!BKE_object_handle_data_update(Depsgraph * depsgraph, Scene * scene, Object * ob) Line 184 (g:\bdev\blender\source\blender\blenkernel\intern\object_update.c:184)
blender.exe!BKE_object_eval_uber_data(Depsgraph * depsgraph, Scene * scene, Object * ob) Line 351 (g:\bdev\blender\source\blender\blenkernel\intern\object_update.c:351)

Gavin Scott (Zoot) added a comment.EditedMay 16 2019, 6:52 AM

Cube.054 in the scene is corrupt. Just Append the rest of the scene contents into a new file and you should be good.