Item disappearing form locked chest in locked house

Hi,

I got granted 5 air supply yesterday, used one, and put the 4 others in a locked chest inside my house. Today, they are all missing. Some other items seems to be missing as well (a large amount of low grade fuel) that were also in locked chest, but it's a bit more uncertain because I don't keep track of those as precisely.

I was playing on [US] RustEZ Pure PvE | No Decay | No Killing | No Raiding . Logged off around 10am EST on 8/21 and connected again around 7pm and noticed they were gone.

Although from a game perspective it sucks, but I"ll leave, I am curious as to how that could have happened.