It isn't a glitch, it was an error on the part of Oasis. Lucky * has been coded to give the jackpot ninja at a certain amount of spins for awhile now. They don't have to advertise this, as they have never told players of RNG event chances, not even recruit treasure caps, they are player discovered. The error made was they didn't think it through when they changed the jackpot ninja to 40k coupons. Lucky * is not the only rigged event, there are many others, but I won't be mentioning them since for the most part, they are still a secret among few. This game has been unbalanced for a long time, there is a lot of code players can take advantage of if they understand how it works. The best thing to do is to accept you got screwed and hope you're in a position to gain advantage the next time Oasis makes a mistake.