Well, yes it was already more or less what I concluded in my previous messages. But actually, the fact to find the same item 4 times in a row doesn't really surprise me anymore in this game : when we look at the % it's suspicious yes, but the randomness in this game makes this rather frequent. It's like when we find 3-4 times in a row the same quest item in clicky events, personally it happens to me rather often, same for finding 3 or 4 same hats etc. It never happened to me at 9k stage though; a bit harsh if this happened to you especially if you dislike the loot, cause it costs a lot to play at this stage
In any case, 6 times in a row with 0 set item in this kind of event, that was a first for me.
Actually, after having found the scarf at my 7th try, I found (still at the 1.5k stage) : 2 lucky chest/box, 1 unique chest, and 1 iron clad chest. So surely not a bug, yes, yes, but it still felt weird to see that lol : 1 set item among 11 tries, where there are 57% of chances to find one at each try. It was like playing heads or tails with a rigged coin - where one side was favored- yet landing on the disadvantaged side 10 times over 11. I guess the only explanation is "randomness is weird in this game" lol.
But well, at my 12th try I found a pulaski's hat from 1.5k stage AND a knox bow tie from the free stage. As I told in my message above, there are still a lot of days to find lots of stuff