How to stop goggles from coming over nose?

Are your goggles tight enough? I dont have this problems with racecrafts and my fly helmet. My helmet is like 4 years old so the design is prob way different

I remove a bit of foam from the gogles in the nose area. Another solution is fitting a bit of material (like a flat rolled bandana) under the helmet lining where your forearm sits. No more pushing up the helmet to release your nose.

Fly seems to have very small goggle ports. I wear glasses and had scott otg goggles when i bought my fly kinetic helmet and they pushed onto my nose. Tried my old o frames and they didn't fit either. Ended up with oakley o2's and they work well for me.
For Christmas I bought my wife a fly f2 carbon, size small. She raced in it last weekend and her oakley o frames were letting dirt in. Next moto she ran my o2's and they were better but still let in roost. We went to a dealer on the weekend and took her helmet to try on goggles. She ended up with some scott hustle.
When we got home I tried her goggles in my helmet and they didn't fit.
Long story short, you will probably need to try on different goggles to get a good fit. I've never had this issue with any other helmet.
My helmet is 2017 kinetic size medium

Luckily for me, I have a big ass nose. The goggle strap would stretch and break before they fell down over my nose.

I'll ask a buddy of mine at the track I see on the weekends, if he has the same problem you mention, as he uses that exact same combo.