I have two stacks of itens that simply vanished from my postmaster. It was a stack of 50 Enhancement Prisms and a stack of 10 Ascendant Shards And to be clear, they were in the postmaster, I did not earn them while my postmaster was full I have no idea if there is a way to revert this, I can grind GMs again, but it just scared me that these itens just vanished from postmaster and how secure my itens are there. I also never heard of such a thing happening in my years of Destiny I was using DIM to manage my postmaster, thats how I notice they were gone.