No, I was not placing items into a container (any). Oddly, when I clicked my equipped weapon, it should have openned the charm screen since my sword has five available charm slots. Instead, the damn sword simply disappeared.
So far, it seems to me that in order to "play it safe" regarding possible problems, I should periodically purge the damn game cache.
Regarding BD, except for 1) the voice acting of the Death Knight and 2) the somewhat locked skill system, I liked BD. And the demo worked fine tech-wise. Altho, so did the DD demo.