Same issue and same error that Danias reported for me too.
But I may add that with the "regular" .exe the game crash even before the music start playing, but if I use the debug .exe the the game start but it cannot go past the "New game>story mode>quick start".
Then I tried to do a custom start, but I can't go past the portrait choice. Here the debugger report:
SCRIPT ERROR: GDScript::reload: Parse Error: Variable "metrics" already exists in this class (at line: 121).
At: res://files/scripts/person/person.gd:1034
ERROR: reload: Method failed. Returning: ERR_PARSE_ERROR
At: modules/gdscript/gdscript.cpp:599
SCRIPT ERROR: newslave: Invalid call. Nonexistent function 'new' in base 'GDScript'.
At: res://files/scripts/characters/constructor.gd:30
SCRIPT ERROR: _ready_newgame_creator: Invalid call. Nonexistent function 'cleartraits' in base 'Nil'.
At: res://files/scripts/mainmenu.gd:274
SCRIPT ERROR: _newgame_creator_reset: Invalid set index 'memory' (on base: 'Nil') with value of type 'String'.
At: res://files/scripts/mainmenu.gd:326
SCRIPT ERROR: _on_quickstart_pressed: Invalid set index 'race' (on base: 'Nil') with value of type 'String'.
At: res://files/scripts/mainmenu.gd:639
SCRIPT ERROR: _stage4: Invalid set index 'race' (on base: 'Nil') with value of type 'String'.
At: res://files/scripts/mainmenu.gd:706
SCRIPT ERROR: _on_nextport_pressed: Invalid get index '0' (on base: 'Array').
At: res://files/scripts/mainmenu.gd:783
SCRIPT ERROR: _on_prevport_pressed: Invalid get index '-2' (on base: 'Array').
At: res://files/scripts/mainmenu.gd:796
SCRIPT ERROR: _on_raceconfirm_pressed: Invalid get index 'race' (on base: 'Nil').
At: res://files/scripts/mainmenu.gd:808