Hi, I’ve tried to open up my Cycles scene in 4.2 Beta in Evee but all I get is a black screen. It compiled all shaders yet. A week ago Blender just crashed without any excuse. I work with 3060 GForce on CUDA.
My camera produced the black, after removing the camera Evee showed up but the result is quite dingy.
Create a simple scene and test it.
Whether this is a blender problem or a setup problem. 
Alternatively, you can try reinstalling the GPU driver.
(Many problems are caused by GPU drivers 
)
I don’t know why but the camera that was in the scene produced the black screen. I removed the camera and used a user one. To be honest, the scene was rendered for 20 seconds in Evee and cycle around 2 minutes. Unfortunately the render in Evee was far from Cycles.
Blender 4.2 is a little darker in EEVEE-Next than Cycles.
But it’s not a completely different outcome.
I don’t know how the scene was structured, so I don’t know the exact cause.
Make sure that there is a setting that works only with Cycles.
And if you activate ray tracing on the EEVEE-Next, it becomes a little brighter.
I found the reason at the camera. The clipping set to zero (Clip Start).