Got online today to find this message
Your Sale of [Standard Genetic Scanner] x has expired. 12/28/2013 at 12:00:05am

So I go to trades, accept it and it hits my invent. I decide I will just stack it with the others, when I notice that the number on it instead of 1, is 0. If I try to stack it, it tells me 'One of these items has already been deleted' if I try to sell it, it tells me the same.

I have plenty of space but I'll be honest, it's annoying me that I can't stack it!

I still don't know why this is happening - it's only for Genetic Scanners.

But at some point, it was consumed, but not deleted. The obvious would be that it's being used from the Trade Broker, but I couldn't find evidence of this in the code.

For now though, just click the trash can icon in your Inventory to remove it from your Inventory.

Thank you, have done that! Not sure how it was used, I have an exceptional and don't use the standards! Good to have the space back though!