Custom Potions don't display correctly

using "/replaceitem entity @a minecraft:potion 1 373 {CustomPotionEffects:[

{Id:1,Amplifier:0,Duration:160}

],display:{Name:Swiftness Potion}}" I got a potion with a missing texture, the same happened when I changed the effect to leaping, I may be doing something wrong, however I think this is likely a bug with the new format of potions