
was working on a macro scene today when blender would crash with an EXCEPTION_ACCESS_VIOLATION whenever I tried to render the scene.
"odd" I thought, because the scene worked just fine with viewport rendering.
the crash log stack trace gave a clue to where the issue was:
Stack trace:
blender.exe :0x00007FF76C89A770 BKE_mesh_face_offsets_ensure_alloc
blender.exe :0x00007FF76C89BC20 BKE_mesh_new_nomain
blender.exe :0x00007FF76D7EB300 blender::geometry::execute_realize_mesh_tasks
blender.exe :0x00007FF76D7F1290 blender::geometry::realize_instances
blender.exe :0x00007FF76F143BE0 blender::nodes::node_geo_realize_instances_cc::node_geo_exec
blender.exe :0x00007FF76CF41B10 blender::nodes::LazyFunctionForGeometryNode::execute_impl
[...]
ah yes, Realize Instances
some of the nodegraphs in the scene definitely use that node somewhere, so I started troubleshooting: disabling and deleting individual collections until the crash no longer occurred on render.
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