Pick Block causes some items to vanish and will not show until inventory is opened

To Reproduce:

1. Start a world in Creative.
2. Fill your hot bar with items
3. Use Pick Block on something that is not in your hot bar
4. Item will be picked and another item will also vanish
5. Open Inventory
6. Result
7. If you do not get result, repeat Step 3 - 6 until you get the result. I can also provide footage.