Beardy Eggs going bad ?

Hi I'm a new breeder, I currently have 3 clutches of eggs, and what I wanted to talk about was my first clutch. The are in a exo-terra incubator and they were layed February 7th and it is now April 13th, I know due to the temperature it can either take more or less time for them to hatch but now I've noticed something slightly odd.. 1 of my beardy eggs has turned slightly yellow'ish very light green'ish looking egg and it looks to be sweating but not the same type of sweating I saw on youtube with their beardy eggs.. And I've also noticed that when I candle it including the other eggs there isn't much movement from what I saw ... the temp is in between 82 to 85 with the humidity of at least 70 to 75. Am I doing something wrong or am I over reacting ? please let me know as soon as possible !

Thanks !