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The credits list "Sandy," when it should be Cindy (although Sandy was the KipTei character in the first game, so it's an understandable mixup)

In the Foyer, the "SUKI" text on her banner is mirrored (compared to ELINA, which is oriented correctly)

I clicked Play, and scrolled down to Custom Night, then clicked that.
This was after I clicked Reset Data in the Settings menu, so it might be only after a fresh install.

Custom Night can be clicked on and accessed despite being labeled as locked. Naturally, it contains many spoilers.

When the Graphical Preset in the Settings is changed, the Audio level reverts back to 50

Ex: if the GP is on High and the Audio is at 33, clicking the right arrow changes the GP to Low, but the Audio back to 50.

Edit: This only occurs if the GP is changed before the Audio change is applied.