Swiper settings not updating code

I’ve just started using the swiper and it’s excellent. However, if I change the values in the SLIDES VIEW section (Space Between, Per View and Per Group) it doesn’t store the value so I’m only ever seeing one image in the swiper. Is this a bug? Can you give me the code to manually enter so I can get it working?

Changing all the other values works fine, it’s just the SLIDES VIEW section that’s not working.