Why do my Rothys always make me feel like Im walking on Legos?

I swear, every time I wear my Rothy’s, it's like I’m playing a cruel game of "Will the Heel Rub This Time?" I’ve tried every size, in every color, and still end up with blisters like they’re part of the deal. Is this just me, or are they secretly training us for some foot endurance challenge? 🙃