Just a minor bug I've experienced in the Sprite Paint tool...
I've got a screenshot from here: https://miiverse.nintendo.net/posts/AYMHAAACAAADVHkkc_0fYg
This weird glitch occurs when you try to copy something, where that blinking image cursor (for you to know where the image will be copied to) is out of bounds of the actual copy position (the box)...
4そうだね プレイ済み