Can't purchase Gaeun's skin?

So, I can't purchase Gaeun's (or anyone else's) April Fool's skin. She's nowhere in the skin shop, and it says can't be purchased on her skin page.

https://preview.redd.it/064fwa9j6dx81.png?width=1370&format=png&auto=webp&s=847e8ce593f806f2ed1ccfecb0a869e3e091f106

Even though, according to the event notice tab, she should be.

​

https://preview.redd.it/cdhgtxl37dx81.png?width=804&format=png&auto=webp&s=a2c17ec9cdedad900088519f962fea16ca152a9f