Candling egg question

[Skipper81]

Day 15
I have 1 egg in particular I'm nervous about. I can see the chick clearly. It's a light colored egg and has been very active when previously candled.
No movement at all this time its just still. I could see this chick opening it's beak a few days ago that's how clear it is to see.
Air sac has grown and looks great but seems odd that there is zero movement. Should I be concerned? I also think veins show less than before throughout the egg but could be mistaken. Any advice is greatly appreciated.

 

[cavemanrich]

Leave egg in place. There is nothing you can do to help it. If it hatches, then all is good. If it does not, then nature took its turn. Normally you toss out eggs when they are duds. Reason;;; You don't want those to explode and smell up your incubator. The explosion is not really an explosion, but rather a rupture.
Your developed egg will not rupture any time soon. All your other living eggs will hatch before any problems should arise.
Seeing you just came on board less than a week ago,,,,,
WISHING YOU BEST,,,

 

[casportpony]

I agree with @cavemanrich, best just to leave it and hope it hatches.