Incubating quail, 24 hours after external pip, no progress

[2 many chickens]

This is not my first go around with hatching, I have hatched button quail before and yes, they come out like popcorn! Well, not this time obviously!! They normally hatch on day 17 for me.

Today is day 18, 8 external pips have been made and not one has hatched.. I first noticed an egg with an external pip 24 hours ago and no progress at all. Others were 18 hours ago.
Is there a problem? My temperature is 37.5 C and Humidity is staying at 72-75

Humidity was low as in 40 percent during the first 13 days then I raised it for lockdown.

Any ideas on why they're taking so long? I have a sick feeling my raise in humidity killed them as they are pipping but nothing else.

 

[2 many chickens]

I should add I do not want to assist unless i absolutely have to..

 

[HannahSpanner]

I’m in the same boat today. Pipped 13hrs ago, I know there’s a bit of window left but I’ve got an anxious 5 year old asking me what’s going on! tricky

 

[Phunktacular]

I'm unsure but, 72-75% seems really high for humidity. I get great hatches with my humidity at around 55%. Do button quail require higher humidity?