Here is a background on things.  Specifically why this is so bizarre by our limited understanding at least of these planetary properties:

When two rotating objects are close together, they influence each other through the conservation of angular momentum, says Penev. Rotating motion is removed from one object and transferred to the other, a process known as tidal dissipation.

n the HATS-18 system, the opposite is happening. The planet is moving closer to the star, which is thus speeding up. Penev and his colleagues figured this out when they noticed the star was spinning around too fast for its size and age, meaning something was causing it to rotate faster.

Is that trippy or what!  We expect more cool updates in regards to this latest find so check back as astronomers can get in more data to study.

thanks to newscientist.com for the great info

thanks to cornell library for the great info