I have noticed a complicated inventory glitch specifically regarding quickhacks. Best I can tell, whenever you get a quickhack as a reward, say for a quest, it doesn't simply give you the quickhack. It seems to UPGRADE an existing quickhack you have in your inventory (say from blue to purple), then creates a ghost version of the lower level quickhack that you CANNOT see, access or use in your inventory. However you CAN see (and SELL) the ghost version in any store.
I've placed two pictures in this post demonstrating the issue. The first is a shot of my inventory, where you can see the quickhacks that I can actually use. There aren't a lot of them, and there should be a LOT more (I haven't sold many or any in my game). The second shot shows my quickhack inventory at a merchant. These shots are taken one right after the other, so I haven't sold or bought anything. As you can see, there are a TON of quickhacks available for sale, but very few available for use. I'd not been paying very much attention to the quickhacks that I wasn't currently using, but once I realized that I should have a lot more quickhacks in my inventory, I became pretty upset.
I finally realized what was going on when I got a specific epic quickhack as a reward for a quest (purple Weapon Glitch hack), and I previously had a blue version of the weapon glitch hack in my inventory. When I received the quest reward, I immediately pulled up my inventory, saw that I had a purple Weapon Glitch, but my blue version had disappeared from my inventory. I then went to a store and pulled up my quickhacks, and there was my blue version, ready to be sold, but completely useless and missing from my game inventory.
I've placed two pictures in this post demonstrating the issue. The first is a shot of my inventory, where you can see the quickhacks that I can actually use. There aren't a lot of them, and there should be a LOT more (I haven't sold many or any in my game). The second shot shows my quickhack inventory at a merchant. These shots are taken one right after the other, so I haven't sold or bought anything. As you can see, there are a TON of quickhacks available for sale, but very few available for use. I'd not been paying very much attention to the quickhacks that I wasn't currently using, but once I realized that I should have a lot more quickhacks in my inventory, I became pretty upset.
I finally realized what was going on when I got a specific epic quickhack as a reward for a quest (purple Weapon Glitch hack), and I previously had a blue version of the weapon glitch hack in my inventory. When I received the quest reward, I immediately pulled up my inventory, saw that I had a purple Weapon Glitch, but my blue version had disappeared from my inventory. I then went to a store and pulled up my quickhacks, and there was my blue version, ready to be sold, but completely useless and missing from my game inventory.