if you open your inventory to get the taking inventory achievement then close your inventory it says you lost the achievement [Taking Inventory] and this only happens when this anticheat is on i removed the ac then got the achievement and it was all normal but then i put the anticheat back on again and tried to get the achievement and it said i lost the achievement [Taking Inventory]
Yes, it is not really a bug, it was made to detect inventory opening, because minecraft doesn't have such api, sadly I can't also hide the lost achievement message.
if you open your inventory to get the taking inventory achievement then close your inventory it says you lost the achievement [Taking Inventory] and this only happens when this anticheat is on i removed the ac then got the achievement and it was all normal but then i put the anticheat back on again and tried to get the achievement and it said i lost the achievement [Taking Inventory]