Lost skins

looks like im not the only one then.  I just came back to the game yesterday after not playing for a while. I looked in my locker, seeing my skins, and was trying on a few that i never equipped before, and everything was normal. then after a while, my sister wanted to join and fight each other in giddy park. We don't own more than 1 device with the game on it, so we just played split screen. after she logged onto the game, i switched teams to the zombies bc she only wanted to play as the plants. After she was done on the game, i changed back to plants, and my skins were unequipped. i thought maybe it was just a bug, but then today i hopped on the game and tried to re-equip them, but it turns out theyr gone completely. im sorry i dont have much evidence, and i dont remember what they were called unfortunately, but im wondering if i somehow did a bug or something on accident that made them disappear? I know i put in kind of a lot of detail but idk what wouldve caused it to happen so i just figured id include everything i remember doing in case itll help. im gonna be looking at all the skins in the game and try to find the names of the ones i remember having, i know i had a like 3 legendaries for the dragon plant and maybe others but the dragon is the only one im sure of the rarities for. please help me if you can