In the prompt field for ADetailer, enter " <lora:XLP_NP12:0.4> nipples, "

・If you have small breasts, 0.3 or 0.4

・For large breasts, 0.4 - 0.6 (if you go up to 0.8, the nipples tend to be uneven in size)

Detection should be around 0.6-0.7 (needs adjustment)

You might be denoising too much. Try a low value like 0.2-0.3 and see if it's enough.

bit late but if that's the case i'd try another model for your hand corrections. pony is notorious for bad hands. but the good news is that you can get them in 1 or 2 gens using a good SDXL fine tune, Animagine or Illustrious-XL. give it a try. go to the ADetailer dropdown > Inpainting and check the "Use seperate chekpoint" box, select the model you'd like to use and you're good to go. the upside is the other models are much, much better with hands (less "fiddly") and can them better in less tries than pony, with the tradeoff of 35-40 seconds of loading models into VRAM. I suggest the above because given pony's namesake focus, a significant portion of the finetune dataset featured subjects that simply dont have hands. same reason you get lotsa jacked-up lower legs/standing on tiptoes/why the tibia to femur ratio is whack. people who care about accurate hands are just going to use a different model. horses for courses, if you'll pardon the pun