So I still think this is a major bug right now in game, especially when dealing with one character slots.
While the world populace was small I decided to make a Tailor as they can solo craft. Made tons of stuff and gave it out to whome ever wandered by, including TONS of thread that I traded away.
Today I found a really nice Basketweaver. He offered to make me thread over time so I could follow my true passion Leather Craft.
So I traded him stuff, armour, a knife, some scaved patterns I'd need in my next life.
Then when I deleted my old toon, and made my new toon everything my old one ever made suddenly became bugged with the dreaded "Invalid Inventory Request"
Mind you not just stuff I myself droped into baskets but stuff that was traded to other people. It all became un-moveable.
I hurts to loose the patterns, had alost one of each teir. But what hurts even more is god knows how many players became bugged due to this.