Vanishing Keys

[Davaek]

After loading my save all of my keys had vanished. I know there is a disappearing item bug but I haven't seen any post on having the items, then saving and coming back the next day and having some items disappear. 

[Freshock]

I believe I had one key vanishing on me, but I was able to use it anyway, so it might have gone into some quest stash inventory or just gone invisible. Never had all the keys disappearing on me yet though.