The second get implementation in sx_runtime.ml (used by transpiled code) was still raising on type mismatches. Now returns nil like sx_primitives. Remove per-call [vm-call-closure] FAIL logging — the jit-hook already logs failures at the right level. Reduces 70K log lines to ~5. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>