Trouble with Sportsman wheels

I put those Sportsman wheels on my son’s Ace and wish I hadn’t. When I first swapped out the stock wheels, the studs seemed a little short but I put on the wheels. Tightened them up and took it for a short ride. No good, the lug nuts started popping off.

I bought longer Polaris OEM studs, I think they come on the Ranger, installed those on 2 of the wheels and bought new lug nuts. The little bit of extra length helps a bunch but now it feels like on one wheel the nuts won’t clamp down. The studs are not spinning. Seems like I’ll tighten one lug, go to the one across from it and tighten it then go to the 3rd lug, tighten it, go back to the first one to check it and it’s loose again.

The hubs on the sportsman have a little lip that goes around. The factory wheel cutout where the wheel sits on the hub fits this lip but with these Sportsman wheels it seems that the wheel is just riding on the top edge of the lip and not fully resting on the hub. Not sure if I should just cut my losses and go back or spend more money on some cheap aftermarket wheels.

Anyone else have this problem with different wheels on the Ace?