The membrane inside the seed shell is still attached preventing the cotyledons from opening.
Mist it with water to soften the membrane and gently remove with a toothpick or tweezers.
It might but is easily fixed. It looks like the seed came off so if isn't opening the seed membrane is likely still stuck on it. You can wait and see but if it were my plant I would very carefully take the membrane off. Just be very gentle and it should peel right off and the cotyledons should pop open.
The membrane inside the seed shell is still attached preventing the cotyledons from opening.
Mist it with water to soften the membrane and gently remove with a toothpick or tweezers.