The overclocking could be the main reason why you're just getting black images.
When I put my gpus clock to regular it worked normally.
If you have Overclocked your GPU that could be the problem, try putting it back to its defaults.
Well, It seems that I have found a solution to my own problem
Apparently, it doesn't like it when it has an OVERCLOCKED GPU.
When I generate an image at 150 steps with a resolution of 512X512 it only shows a black screen. I don't know if it's my GPU (RTX 2060) but it won't work.