New clutch questions- Should I cut/ Mould

[LightningPython]

First time with eggs, very excited for the babies to come out. For anyone interested pairing was Lesser Enchi x Mojave

Its currently day 54 temps were 87.5 - 88f, last night one of the eggs had a slit in. No sign of baby however- should I cut that one a bit more and the rest of the eggs or leave them all to it until more have pipped?

Also the one right above the one with the slit has started developing some white mould on the top, should I remove it but try and keep it in the same orientation? And for the mould, its just any athletes foot powder right? Just sprinkle it on top?

Many thanks