Conditions cleanup

Marlin/src/lcd/menu/menu_ubl.cpp

@@ -451,7 +451,7 @@ void ubl_map_screen() {
 
     #if IS_KINEMATIC
       // Index of the mesh point upon entry
-      const uint32_t old_pos_index = grid_index(x_plot, y_plot);
+      const int32_t old_pos_index = grid_index(x_plot, y_plot);
       // Direction from new (unconstrained) encoder value
       const int8_t step_dir = int32_t(ui.encoderPosition) < old_pos_index ? -1 : 1;
     #endif