Legends ZA missing mega stones

[Kon]

Hi everyone,
I’m using PKHeX for the first time with Pokémon Legends ZA, and I’ve run into a problem. I’m currently stuck at the part where you need a Mega Evolution stone for Absol. I tried to add the stone through PKHeX, but my Inventory only shows four tabs:

• Medicine

• TMs

• Other items

• Key Items

Originally, only two sections were visible, then TMs appeared later, and now I still can’t get the other item categories to show up. Because of this, I can’t add the Mega Stone, and since Absol can’t hold items i can't move on from this mission

Has anyone run into this issue? Is there a way to unlock the missing inventory categories or force-add the Mega Stone so I can progress? Any help would be greatly appreciated!

[Kaphotics]

PKHeX isn't a solution for not playing the game. Restore a backup before you did any cheating.