Hello !
For the spawn issue when you exit an area, I corrected some recently but that wasn't in the public build. Don't hesitate to use the "warp spawn" multiple time at it can sometimes fail if the level is too slow to load.
For jason and the haunted house's ending, I'm gonna look into it. Sound like a flag is missing somewhere but I'm sure I already checked. Did you saved and loaded between the beginning and the end of the level? Anyway, a quick fix is to use the "skip first level" debug function. This will place you in your house with all the flags correctly setup.