Items get picked in full creative inventory

While playing around in creative, I filled up my entire Inventory with stackable and not-stackable items, when I saw some items lying on the ground, I walked over them and they were picked up while my inventory was full and when I picked them up they were visually and physically gone from the world.

steps to reproduce:

Go into creative in any world.

throw some items on the ground.

Now Fill you entire inventory

The thrown items should be picked up and disappear from existence.

What should happen:

The items should not be picked up and should stay where they are.

The resource pack for stack/shift crafting im using is Resource Packs (bedrocktweaks.net) >GUI