Fixes after the DLC launch
The Missing in Forest Lake update fixes a map that could disappear after loading a save and could not be unlocked again. It also addresses clipping through terrain and falling below the map.
Cars, boats and sprinting
The car has revised physics and obstacle collisions. Boat controls have been rebuilt, and leaving a boat in deep water is blocked to prevent getting stuck. Sprinting is now available on the DLC map. On a controller, press the left stick to sprint and use D-pad left to crouch. Thank you for the bug reports.