okay, they aren't really invisible items because they aren't images at all, but the way the error appears make it look like there are a bunch of invisible items in my pet's TC ( here: https://subeta.net/pets/Hayim ), pushing the actual items further down. i've replicated this error in both chrome and firefox.

oh, also, if the treasure chest is "even" (i'm not sure how to word this -- like, every row is filled), the problem seems to go away, but adding another item will mess that up.

thanks in advance for any help, and sorry if this isn't in the right forum ;__;

it happens on both firefox and chrome. i asked a friend and he's seeing a blank space too; i'm not sure why it's not there for you.. but i think i found what's causing it, the item "stuffed yam" is 64 x 66 while everything else is 64 x 64.