Sprinkle chicken with paprika, rosemary, 1/2 teaspoon salt and pepper. Heat oil on sauté mode in a multicooker. (No sauté mode? See Tip.) Working in batches, add the chicken and cook, turning once, until lightly browned on both sides, 2 to 3 minutes per side. Transfer the chicken to a plate. Add bell pepper and garlic to the pot and cook, stirring, until fragrant and beginning to soften, about 2 minutes. Turn off the heat. Add broth and potatoes. Place the chicken on top of the potatoes. Close and lock the lid. Cook at high pressure for 8 minutes.