That's the mustard seed dilemma? I would have guessed the real dilemma is this: The Bible says if you have even the smallest amount of faith, you can work literal miracles. Since that's obviously not true, either the Bible is lying, or nobody actually has faith. Pick one.
Christianity is FALLING APART because of this (Mustard seed dilemma)
Jesus says in Mathew 13:31-32 the smallest of all seeds is the Mustard seed and that’s not scientifically true
The smallest seed is orchid seeds, therefore Jesus got it wrong