On Steam instead of paying the fee to but a new store page for the Western release, they decided to just reuse and update the Japanese page for the game that was released a year ago. This meant there was no wishlisting or anything until the game went live.
Which, when it did go live, it was a 0MB file. Empty folder, nothing to play. This was fixed in a couple hours but still kind of shitty.
But whatever they did to fix that, fucked up the Japanese version of the game. Then the Japanese players started review bombing it because of that.
That's fixed now too, but the damage is done. Game-wise though it's fine, not major bugs or anything.