#1 The first time I launched AI runner 2.2.0 Stable Diffusion after hitting generate it downloaded everything, but it failed to make any images just black screens. Once I restart AI runner it worked fine though.
#2 Sometimes AI runner will fail with a black screen on new custom Stable diffusion models too. I'll have switched back and forth between it and something else a couple of times. I'll get a few blank images from it, and then It'll start working properly eventually though.
These same models work fine right out of the box in WebUI.
.cptk models seem to fail with a black screen much more often than .safetensor models in AI runner.