Thanks for your response
..
I disabled iLvL, still got the issue though.
I was testing it with an empty stash and some bought low level uniques/sets. Here's what happens:
1. Barb runs to stash
2. Barb switches between stash-tabs, seemingly arbitrary
3. sometimes he stashes a rare, unique or set item in any one of the 3 stash-tabs
4. he runs off and vendors all the items in the inventory
i could reproduce this several times.
On a side note: When he opens the stash, the cursor seems like it's "bugging/shaking" just left of the inventory screen.
I'm running it on the proper resolution, etc.