Nearly all of the skins have disappeared. The only visible ones are a handful of new ones. I do not know whether or not this is a bug; I hope it is.
MCPE-32896
Skin Lack
Resolved
Invalid
0
(Unassigned)
Unconfirmed
Tablet - iOS - iPad 2
I'm not into technology, I don't know.
1.2.20.2
Retrieved
You can use the store to search for and apply skin packs.