I've encountered multiple bugs so far. The most concerning was the game crashing a few times my first time opening it. The second is the loop where after finishing the tutorial I skipped the prologue but was sent back to the beginning of the tutorial. The third was after purchasing a 5 Star Import, I was sent to the gacha menu (which was locked and still is) and given a tutorial for adding characters to the banner, then the character was not in my witches list. The two 4 Star Imports worked fine