Sometimes, for no aparent reason, all my inventory disapears, and i cant access it, i think it's still there because when i buy something that i had before it adds one to the number i originally had, and when i buy something new it has two of them, or the number of the item i previously had in that slot plus one. it kinda annoying, and the other thing, i think you should be able to increase the skill limit, and focus more on the training of individual girls, and make girls more expensive, or start out with less money, and make the requirement of gangs less immediate, so that you can establish a brothel before goiing to war with others.
haven't added items and have most recent version, it usually happens when i don't check my inventory for at least three game weeks, but not always.