Not so much found as agreed on. There was never a big blocker to making it work; just that work is needed to “make it work” and the simpler solution to get things out the door was to disable until we could work on it. (I used “work” too much in that sentence…)
rule implementing now [ probably nicer solution, but also easiest implementation wise ] if the world your home is on is deleted or locked (or you lose visit permissions), then “warping home” (including after death) does the equivalent of a “warp to world” to the world your home world was attached to for free (in a way that cant be exploited by hacky hacking). If you are in the “super edge case” of you did a “return home” after death, and then whilst in the sanctum your home world is locked/deleted… then your warp will be cloudy and you’d have to restart the game or use the warp on the other-side of the sanctum to manually go home “again”; this time opening up to the attached world