My question is, what was your inventory full of? If you couldn't discard something for that exotic engram helmet even if it was a legendary engram spot, then you must not have wanted it.
I never understood why people hoard items in their inventory. The only time I end up doing that is for my primary weapons and even then I get a little OCD and have to throw some shit in the vault.
English
-
I usually run strikes until my postmaster and inventory is full. Never lost anything that I'm aware of.