Sandmask dissapeares after used and placed in inventory

Game mode: Online
Region: US

This has happened to me now on seven different occassions. I don a sandmask. then after the sand storm I place it into my inventory. The next time I open my inventory the mask is gone. Seven times now on seven different dates, times, and servers.

Steps on how to reproduce issue:
1.done a sand mask in a sand storm
2.put it back in your inventory the game
4.opem your inventory