Hello, I have such a problem. I recently bought a Razer Huntsman V2 keyboard and it turned out to have uneven keycap lighting. When I took off the keycap, I saw that it was damaged. It feels like they were trying to tear off the lower white layer. As I understand it, this problem is quite common for Razer PBT keycaps.

I was thinking about solving this problem and I got the idea to try to sand those places with a borehole with a small ball nozzle. In general, I want to trim that layer and it seems to me that the lighting should become normal. Tell me, please, how can I fix it and is there a better way?