So I'm in Beyond 28 and ran into a bug where using the BUY RANK option has resulted in a bug where the amount of star dust I need is increasing yet I'm able to upgrade the generator regardless. This happens on generators with start dust counts in the Ocqag amounts. It seems to be the game is unable to calculate it properly and defaulted to this.
#Stardust amount to upgrade using Rank Option is bugged
tranquil bear