Yep, probably a twisted leading edge.
Use the search function to see other posts on the same topic, such as this one:
www.seabreeze.com.au/forums/Kitesurfing/Newbies-Tips-Tricks/Stretched-kite-pulling-to-one-side?page=1Follow the instructions outlined by Ben from Ikon.
My wife had the same issue on a Core kite she got 6 years ago that was almost new at the time. We took pictures clearly showing the kite was not symmetrical. Despite the kite still being under warranty, they didn't do anything about it.
If that's your issue as well, you can only fix it to a certain extent, it's unlikely it will ever be perfect and likely that it will gradually come back to being twisted.
Good luck,
Christian