TF2 is crashing whenever I join the Red or Blu team on my map (NOT when I join Spectator). Through selectively hiding items, I've narrowed the source of the crashes down to one entity: the first path_track in the cart track ("sspl_path_start"). No compile errors, no runtime errors. The entity setup is copied straight from ABS, with path_tracks hovering 40HU over the ground. I'm able to fly throughout the map when I join Spectator mode (and see the cart in the correct starting position), but crash whenever I select a class. I believe the crashes first began when I fixed a missing connection between two path_tracks. Before I fixed this, I had the cart tracking working up until the gap. Another caveat, I've compiled with only the necessary payload entities/one spawn location, and the crash still happened. Edit: This is what the game looks like when it freezes.