Help! 2 week old chick with "sticky feathers"

[Kaya1995]

I hope someone can answer this 'cause i really don't know

she/he hatched last, and never really "fluffed out". While it's siblings got all poofy, it stayed kind of wet looking. I kind of hoped it would get better, and i even gave it a bath.. however, now they are two weeks old, and while its siblings have gotten pretty wing feathers, this ones are still kind of "tubed" and stuck together. And they even seem to curl the wrong way. (They are Cubalayas, so no frizzle breed) I have noooo clue what it is. It eats and drinks, but looks a vit smaller than the rest. The picture is from a week ago or so. Hope someone can help

 

[Poultry parent]

Is it clubbed down?

 

[Stephine]

I didn't know what clubbed down was, so looked it up:
clubbed down
a condition in chickens suffering from a nutritional deficiency of riboflavin: the erupting feathers do not rupture the feather sheaths properly, causing the feathers to have a coiled structure.
Maybe give it some extra vitamin mix containing riboflavin?