This was caused by `stack_index` being stored as a `short` even though the stack `index` inside `ntree_exec_begin` was `int`. Rel #146705 Pull Request: https://projects.blender.org/blender/blender/pulls/146733
This was caused by `stack_index` being stored as a `short` even though the stack `index` inside `ntree_exec_begin` was `int`. Rel #146705 Pull Request: https://projects.blender.org/blender/blender/pulls/146733