Ah okay, what's happening right now is one of the reasons I prefer selling on itch.io... I submitted v1.4 to the asset store using Unity 5.4.2, meaning v1.4 doesn't appear for anyone with a lower Unity version number until I submit using an Older version of Unity. (Even though I know it'll run fine on any version of Unity 5.4) So... you're still using v1.3 right now! I need to redownload an older version of Unity and resubmit with that to avoid this in the future.
Send me an email at support[@]kaiclavier.com with your asset store invoice, and I'll get you an itch.io key so you can get the latest version!