I recently ordered 24K Xx replacement lenses and both sets didn't fit correctly. Both orders had the same issue, the left lens "sorta" fit and the right didn't. Once I got the right lens in, there was no way in hell the screw would catch. Spoke with Oakley both times and they are just as surprise as I was.
So, they now requested me to send the frames and new lenses to their service department to see what the issue is. On the plus side, aside from the original shipping fee, they have picked up all of the other shipping costs.
BTW, these Xx's were purchased new probably in 1999 so I don't know if that's an issue?
My 24k lens was like that(ordered it a month ago) and I thought the lens was too big. I noticed that their are gaps on the orbitals and it slightly jiggles so I pinched where the orbital screws go and continue to install the screw and rubber washer. After a few seconds of trying to catch the screw to the other hole, it finally connected and it was a snug fit. Try it again and don't be afraid that it might break since the lens should be installed nice and tight.