diff -r 6aa955ad8122 -r 25b6c8b20d1b src/bisection_tree/btfn.rs
--- a/src/bisection_tree/btfn.rs	Thu May 01 13:06:58 2025 -0500
+++ b/src/bisection_tree/btfn.rs	Thu May 01 14:53:14 2025 -0500
@@ -838,7 +838,7 @@
 // there should be a result, or new nodes above the `glb` inserted into the queue. Then the waiting
 // threads can also continue processing. If, however, numerical inaccuracy destroyes the `glb`,
 // the queue may run out, and we get “Refiner failure”.
-impl<F: Float, G, BT, const N: usize> MinMaxMapping<N, F> for BTFN<F, G, BT, N>
+impl<F: Float, G, BT, const N: usize> MinMaxMapping<Loc<N, F>, F> for BTFN<F, G, BT, N>
 where
     BT: BTSearch<N, F, Agg = Bounds<F>>,
     G: SupportGenerator<N, F, Id = BT::Data>,