Bug: Generation with ALTTP and KH AssertionError: entrance with no connected region

[Mysteryem]

What happened?

Template A Link to the Past and Kingdom Hearts yamls cannot generate together. By bisecting the commits, the cause is: 436c0a4 / #4420 @NewSoupVi

Creating MultiWorld.
Creating Items.
Calculating Access Rules.
Traceback (most recent call last):
  File "G:\git_Repos_other\Archipelago\Generate.py", line 552, in <module>
    multiworld = ERmain(erargs, seed)
                 ^^^^^^^^^^^^^^^^^^^^
  File "G:\git_Repos_other\Archipelago\Main.py", line 126, in main
    AutoWorld.call_all(multiworld, "set_rules")
  File "G:\git_Repos_other\Archipelago\worlds\AutoWorld.py", line 184, in call_all
    call_single(multiworld, method_name, player, *args)
  File "G:\git_Repos_other\Archipelago\worlds\AutoWorld.py", line 174, in call_single
    raise e
  File "G:\git_Repos_other\Archipelago\worlds\AutoWorld.py", line 167, in call_single
    ret = _timed_call(method, *args, multiworld=multiworld, player=player)
          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "G:\git_Repos_other\Archipelago\worlds\AutoWorld.py", line 153, in _timed_call
    ret = method(*args)
          ^^^^^^^^^^^^^
  File "G:\git_Repos_other\Archipelago\worlds\alttp\Rules.py", line 113, in set_rules
    set_trock_key_rules(world, player)
  File "G:\git_Repos_other\Archipelago\worlds\alttp\Rules.py", line 1128, in set_trock_key_rules
    all_state = world.get_all_state(use_cache=False)
                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "G:\git_Repos_other\Archipelago\BaseClasses.py", line 443, in get_all_state
    ret.sweep_for_advancements()
  File "G:\git_Repos_other\Archipelago\BaseClasses.py", line 861, in sweep_for_advancements
    reachable_advancements = {location for location in locations if location.can_reach(self)}
                                                                    ^^^^^^^^^^^^^^^^^^^^^^^^
  File "G:\git_Repos_other\Archipelago\BaseClasses.py", line 1272, in can_reach
    return self.parent_region.can_reach(state) and self.access_rule(state)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "G:\git_Repos_other\Archipelago\BaseClasses.py", line 1148, in can_reach
    state.update_reachable_regions(self.player)
  File "G:\git_Repos_other\Archipelago\BaseClasses.py", line 755, in update_reachable_regions
    self._update_reachable_regions_explicit_indirect_conditions(player, queue)
  File "G:\git_Repos_other\Archipelago\BaseClasses.py", line 771, in _update_reachable_regions_explicit_indirect_conditions
    assert new_region, f"tried to search through an Entrance \"{connection}\" with no connected Region"
AssertionError: tried to search through an Entrance "Awakening (Player2)" with no connected Region
Exception in <bound method set_rules of <worlds.alttp.ALTTPWorld object at 0x000002BF54AF1A30>> for player 1, named Player1.

With assertions disabled, this errors a few lines later with:

  File "G:\git_Repos_other\Archipelago\BaseClasses.py", line 774, in _update_reachable_regions_explicit_indirect_conditions
    blocked_connections.update(new_region.exits)
                               ^^^^^^^^^^^^^^^^
AttributeError: 'NoneType' object has no attribute 'exits'
Exception in <bound method set_rules of <worlds.alttp.ALTTPWorld object at 0x000001BD319FD280>> for player 1, named Player1.

What were the expected results?

Generation succeeds

Software

Local generation