The bead hole is too small.
If you find the hole of your bead is just a little too small, you can always use a bead reamer to file down the inside of the hole, making it slightly larger. Learn how to use a bead reamer with our tutorial here.
If you find the hole of your bead is just a little too small, you can always use a bead reamer to file down the inside of the hole, making it slightly larger. Learn how to use a bead reamer with our tutorial here.