EDIT AND ADDITIONAL INFO: Also after doing some research.... I've found that DIM has a "farm mode make space" obviously the developers at DIM have taken this broken system into consideration. Unfortunately I just found out about it a bit late. For anyone else who was "liable" for loosing materials as some people have suggested. 👇👇 Here's something I've found that will most definitely not let that happen again. Destiny Item Manager "Farming mode helps avoid overflowing the postmaster by watching for new items and moving them to the vault if you're running out of space to pick them up. It will keep one slot of each type open so that you have space to pick up engrams or rewards. To start farming, click the character tile you want to farm for, and choose "Farming Mode" from the menu. To stop, click the big "Stop" button." I would imagine with a feature like this someone realized the flawed and broken system and implemented a way around it and fomo or fear of loose materials would be a better statement. I'm thankful that the developers at dim made this a feature because well obviously the first in last out postmaster concept is severely broken and DIM has a feature to avoid this broken system. I'm not sure how accurate it is but moving forward I most definitely will be trying it out. And for anyone else who thinks the alloted space of 10 acendant shards in your inventory is enough space no need for commentating the same thing over and over and its not "storage" etc Its broken. But thankfully I found that option on DIM and most definitely will be trying it out. And hopefully this helps anyone else who may have encountered this issue. And to the guy who lost 240 spoils out of the post thats very unfortunate and I can understand your frustration.