+- It's not a bad ending, Arthur just went the way of the Diamond Mask, it will be noticeable if you look at the CG
My game memorizes all endings, and the true ending will depend on discovering all possible endings when I get to 1.0 :D
It's not necessary for the player to work that hard for the true ending, but it will be very different from a neutral or good ending.
I'm a solo dev - writing every unique route is a waste of time for me, players want an amazing story and they will get it, sponsor me with money - there will be more unique 'plot paths', but for now I'm making games in my vision of plot building and blah-blah :DD
I mean - to create a full-fledged second alternate story choice - it would take as much time as it takes to create the main story
It took me 5 months to create The Wrath - to create a second story/plot from a choice where Wrath is rejected - would take the same amount of time. This violates the law of time management when creating a game.
About that error.. you were probably playing on android, right?