Hi,

I have fun using Universal Gadget early in the game, and often ran into the following:

  When using it to heal yourself (or probably damage someone as well), if you are killed right as it is going off, there is no heal effect or damage effect, but it disappears from the inventory.  So your $500 just vanishes while you wonder why you and not your enemy is dead since it made the sound of going off =/. 

Last time this happened it made the noise that it went off, I saw my health jump by 2000, thought to myself sweet I got a kill, and half a second later suddenly died.  I think this was due to lag as it went off on my screen by i died from 200 damage done to me. 

Since it does not disappear when u get stunned half way through using it or die at that point my thinks this is a bug.