Heya! I have a new player inventory that has more equip slots and the regular inventory slots, but whenever a different GUI places or removes itemstacks from the player's inventory the changes are reverted once I open this inventory. Everything is fine until the moment I open the new equip inventory. I'm wondering if it's a problem with saving changes to the player's inventory from different gui that gave/removed items but then why does it only revert when I open my equip inventory.
Anyway, I don't know what else to do and I'm tired of messing with it. It's an old problem that is now vital to jump on before I can get further since the equip inventory is meant to replace the regular minecraft one.