TBH idek if this is a bug or feature so went with blank report but was hoping if its intended to have cubes be repairable please lmk but if not then add .setnotrepairable pls cause it conflicts with another mod called Gobber please and thank you

Gobber author here to add a bit more info

the player is using my ring of repair item, that repairs items that have lost durability.

I do this by running a repair tick handler off the forge event bus.

I run this code:

	private static void repairInInventory(Player player, Inventory inv)
	{		
		for(int slot = 0; slot < inv.getContainerSize(); slot++)
		{
			ItemStack target = inv.getItem(slot);
			if (!target.isEmpty())
			{
				if (!(target == player.getMainHandItem()))
				{
					if (target.isDamaged() && target.getItem().isRepairable(target))
					{
						target.setDamageValue(target.getDamageValue() - 1);
						return; 
					}
				}
			}
		}
	}

If it is intended for poke cubes to be repairable, then no issue. If not, then putting the .setNoRepair item property will correct that.

I will look into making that change,