Yep it is frustrating. Yesterday Exec Producer wrote an article and addressed this issue. So Devs are aware of it and are looking into it. Just try to remain patient while they work on a fix.
Disappearing items!? – This has started to crop up. Now, this shouldn’t be confused with a database crash during last night, this is something far more complicated but is connected to the Salvage Matrix but probably not the cause. Rather an underlying error which happens more with the use of the Salvage Matrix. We started seeing this happening more and more and have a team investigating this. We might disable the Salvage Matrix to minimize this problem while we find a solution.
Source:
http://community.defiance.com/en/201...erent-results/