The PBVH vertex positions accessor functions have to match the logic in `sculpt_update_object`. When there were topology changing modifiers before deform modifiers it didn't. `BKE_crazyspace_build_sculpt` just skips the topology changing modifiers, and the resulting positions are stored in `ss.deform_cos`, which we need to access here. Pull Request: https://projects.blender.org/blender/blender/pulls/130139