Had the same experience. Even with base G8F there's a little ripple there, although not nearly as obvious. I think it's the clothing item. It's an early G8F item, and doesn't auto-follow well. It's okay on G8F and V8 and some other characters, but doesn't even behave well with some other base figures.
It's a PC+ item, so it may not have cost you much, but if it's a recent purchase, I'd request a refund if you don't have characters it works well with.