* Fix crash which could occur when drawing with palette animation disabled.
* Fix crash which could occur when drawing with palette animation disabled.
* Fix multiplayer desync which could occur when adding a track piece of a different rail type to an existing rail tile, where this would change the tile's rail type, but this fails due to an obstruction.
* Fix multiplayer desync which could occur when adding a track piece of a different rail type to an existing rail tile, where this would change the tile's rail type, but this fails due to an obstruction.