This is an interesting dilema. Your carpet is becoming a floating "magic" carpet.
I don't really know how to fix it, but I'm wondering if, as a temporary fix, sticking a few golf tees down into the carpet and then through to the substrate would be sufficient to keep it fastened down.
I don't really know how to fix it, but I'm wondering if, as a temporary fix, sticking a few golf tees down into the carpet and then through to the substrate would be sufficient to keep it fastened down.