I was grinding for days to earn the Newton’s recipe artifact which supposedly gives 50% bonus mytjstones when you prestige. I was so excited when I finally got it only to find out it doesn’t work at all. I always prestige at level 130 for 226 mytjstones. After Newton’s recipe fully upgraded I still got 226. I even rebooted game still doesn’t work. I’m gonna request the 10 bucks I spent on this game back. So disappointing that so many ultimates and artifacts are bugged
Update: Due to new information on the reddit page and feedback from others regarding their experience, I am pretty sure it does work but only on epic boss kills. For some reason i had the benefits of newtons recipe before i got the item. Not sure how that happened but it was a beneficial bug in my favor.