Yes. Though it doesn’t warp quite as much as ABS, HIPS filament will warp if you do not use a heated bed and a heated chamber or enclosure. Use a heated bed of between 90°C and 100°C depending on your type of HIPS filament, though 100°C+ can be best for adhesion. Higher temperatures prevent warping due to the material cooling too quickly. Using an enclosure or heated chamber also keeps the high ambient temperature consistent during printing, preventing any rapid cooling that causes warping and deformation. Many desktop FDM 3D printers now come with enclosures, but 3D printer kits and RepRap 3D printers are typically open printing and will struggle to 3D print HIPS.