I was trying to make my own version of nav2_bringup on humble but the stack would crash on startup. I traced it to #3616, in particular to the fact that nav2_are_error_codes_active_condition_bt_node is not in humble but it's referenced in the parameter file for nav2_bringup. https://github.com/ros-planning/navigation2/blob/395b9cd8f424203d8ac88ea01ce29a8b550ec602/nav2_bringup/params/nav2_params.yaml#L70

Reverting the params file to 0d86469 seems to have made it work