Seen this many times and had this myself w/ a big crispa once.
It's just the way the flow is hitting it.
You can try to adjust how your flow hits it, like angle better, but keep flow up at what is normal for you.
Right now just untwist it, and it's possible it will kind of strengthen or stiffen up to keep from twisting, my crispa did eventually, but I had to untwist it several times before it did.