For now I found those bugs
1. Some characters (almost half of them) can go to affection 3 after that they cant be talked. Meanwhile "Umbreon and Espeyon" and Lucario you can talk but their affection stucks on 3 (even with Lucario even called "affection 4")
2. If you choose peacefull mode and then disable it all characters test goes as their would be impostors even if they aren't
3. Sometimes if you did hand test to some character and press to test it again it goes again and after it ends you go to the corridor night and when you go to sleep all characters act like its still the same day (talks and tests) but this repairs after another sleep