Never seen this before

I have three seedlings that are either not growing new leaves or the leaves are deformed. These are all a grapefruit strain and I was wondering if this was normal with the stability problems it is suppose to have. The first pic is the worst. It has two elongated leaves and has not started growing it's 2 three fan leaves, yet. The next two, also, have elongated leaves and their 2 three fan leaves are growing very slowly and seem deformed, as well. The other seven seem to be growing fine and will be put on a flowering scheldule next week. I have never seen anything like this in my 15 years of growing. However, this is a new strain for me and I know nothing about it. Please give any advice you can, thanks.

The affected plants are in the center of each pic.

I really need some advice if anyone knows how to deal with this. I would hate to see them die but things happen.

God I love mutant freak weed shows...LOL
See what happens, or start over.
I'm sorry I have no better advice.
One guy did post a funny looking seedling
a month or two ago. It had 3 starter leaves
and three fan leaves....