My stuff Is gone When I died and came back

So I was Playing minecraft And I had Died. When I ran back to my stuff most was there. But my Diamond Pickaxe, Netherite sword and Diamond Axe were gone. All of these had decent enchantments so I was Mad. If I could Have my stuff back It would be the world to me.

My stuff 

Netherite sword(with looting 2, fire Aspect 1, and knockback 2)

Diamond pickaxe(with Fortune 2, unbreaking 3 and efficiency 4)

And diamond axe (With only Sharpness 1)

(How to recreate)

1. Equip elitra with curse of vanishing 
2. have all good loot in hot bar
3. Start flying for a bit and stop gliding 
4. Swap elitra with Netherite chestplate
5. Die
6. Go back 
7. Pick up stuff and see halve of good loot is gone.