Seedling leaves pointing straight up

[Dalwyn]

What could be the reason for the leaves on one of my seedlings ( purple glam kush auto ) pointing straight up?

Grown in coco, and pots are placed outside where it gets full sunlight throught the day

 

[tall boys]

Look like it just sprouted ?

 

[Dalwyn]

Look like it just sprouted ?

7 days since it sprouted

 

[tall boys]

7 days since it sprouted

I'd say it will open all the way, in the next couple of days ...
Still very young in age ....