In my Minecraft world sometimes when i try to trade pumpkins to my farmer he won't accept them even tho I have them in my inventory and the farmer is a master so the trade is unlocked. i have tried leaving the game and re-joining but it still did not fix it. i also tried dropping the stack of pumpkins and picking them back up and it still did not work. please fix this bug because my pumpkin farm is going to waste and if have broken useless pumpkins in my chest.