i think my debug could be very interesting, i lost thunderball + ivory tower ~2 weeks ago.
today i decided to farm those back, this time with the backup script.
after i got the second item, equiped it and opened my stash (not shared stahs) i couldnt deequip any items, in a new game thunderball and ivory tower are both gone again.
i loaded the backup and did some testing, deequiping one of those items, opened stash, still the bug appeared.
i tried 2 times deeuiping both items.
first time same result, but the second time, nothing happend. i made a new game and still no bug appearing.
hopefully this will help fixing this bug.
€: oh the backup i loaded everytime is from 1:15https://pastebin.com/tSrGKTsu