Apparently because they're considered insufficient light sources and not good for energy conservation. USARK are going to try and fix it but jeez 😬

I was gonna say, USark has gotta be on top of that, that would be devastating for everyone. I hope they destroy these pieces of shit. Like, there's still heat emitters for warmth, but basking bulbs were fine, they didn't need to be nerfed and UVB is essential for the health of so many reptiles ugh