Just started playing. Encountered 4 bugs.
1) Same as user "meimeia" - when I pass my mouse over an idol doing activities, it shows all their stats as "Cute: 76".
2) If you are in the middle of a game and load another game, all stats and unlocked/locked research "appear" to be the same as the game you were just playing until you unpause the game. E.g. If I save my game, unlock the lyrics "loneliness", and then load up the previously saved game, it will appear as if "loneliness" is now unlocked until I unpause and continue playing.
3) If you cancel a queued activity in the quick-access bar under "details", you can't queue another activity (also, is there a reason why you can't queue activities if you click them on the sidebar)?
4) There is an inconsistency between the Activities on the sidebar and the Activities on the quick access bar. My main issue is with the spa activity and how much stamina it restores. If I queue a spa activity now, is the displayed "stamina restore +2/+5/+10" a projection for the day it actually activates, or does it only reflect today (which would be misleading)? Right after using the spa to restore 10 stamina, the mouseover under quick-access will show that if I queued it again, it will restore another 10 stamina (which I know is untrue). Under Activities on the sidebar, it will show correctly +2, although sometimes I find this value off too. It's frustrating not knowing what I will get if I queue this activity.
Edit: 5) I found a 5th bug which is a little exploitative but a little difficult to replicate - sometimes midway through playing a game, I've loaded a previous save but the save window won't close. When I click cancel to exit the window, I found that I have indeed returned to the previous save, but I have also retained some elements of the existing game (e.g. I've retained the research points I gained in that time, and maybe money?).