ctrlp does not search any more in wild mode

I updated ctrlp today, and it does not search any more.

For example, I have a list like this after I press ctrl+p

> a/b/c/d.js
> a/b/c/e.js
> a/b/c/f.js

then i entered af, it gave me nothing, it should give me a/b/c/f.js in previous version.

Did I miss something here?