I swapped an item from the ground with an item in my hand. The item didn't appear on ground or same location, it appeared above me on the roof. This happened maybe two times before this one. This hasn't happened to me pre 1.30 so I'm unsure if it's this map or the game itself.

Not sure if this happened as well in a building without a roof, but it definitely happened to me once before this.

1) Hold an item in hand

2) Swap with an item on the ground

Expected the item I swapped with to be placed on the ground replacing the one picked up.