A couple suggestions here…
- After getting the pod wet, poke a few holes from where the seed goes all the way through the bottom with a toothpick.
- Soak your next seeds in water for 24-48 hrs until they crack and a small root tail appears. Then place in the pod with the small root facing down.
- After soaking your pod, squeeze it to get out excess moisture.
EDIT: 4) No need to cover the hole once the seed is in if you use the dome that comes with the Start.
It seems that your pods are saturated with water so the roots didn’t know which direction to go or couldn’t get through the pod (hence the toothpick holes). Also, placing a popped seed with a taproot facing down helps with it finding it’s way towards water as it’s already heading in the right direction.