Chest issue

So I was in a chest grabbing some seeds and I was holding down so I could grab the whole stack (41 items). And when I did that the Green loading bar came up like usual it completed and only one item went into my inventory, so I tried again, and again but it didn’t work. And then I try to grab a couple beat root to see if it was just that stack of seeds but that didnt work on them either. I just reloaded Minecraft and tried on a stack of potatoes in a different chest still didn’t work. I am playing on an iPhone 6s. Please fix this ASAP. Bug is in both creative and survival mode.