When sorting my inventory by category, sometimes there will be two strange categories at the top - one with a blank header, one labelled 'Account Upgrade'. Right now I have Inflatable Orange Tube in the blank, and Cheddar Sweety Bun in Account Upgrade. Certain items seem to cause it - I recall some older clothes items being the blank category, particularly from Icy Goods and Beach Shack, and another kind of bun in Account Upgrade.

ETA: also, way too many items get sorted into the 'Special' tab. A few examples are Black Bowling Ball, Demi Chair, Blueberries and Cream Lolly. It's a bit annoying.

⭐ Items in Incorrect Category :)