Fertile egg? Looks weird

[MotherDucker3]

I started with 4 duck eggs, 2 were for sure infertile and one is developing good but this last one I’m confused about. I’ve never been able to see veins but it also looks way different then my 2 eggs that were not fertile. Photos below. First photo is my non fertile egg, then my fertile egg (on day 13) and then the last 2 photos are the weird egg that I don’t know what happened. Was it maybe fertile but didn’t develop properly? The egg is green also, which I’ve read can be harder to candle. I don’t wanna leave it in the incubator and risk it exploding or something if it’s not a good egg.

 

[yakitori]

How does it smell? Apparently bad eggs will start to smell off...

 

[MotherDucker3]

How does it smell? Apparently bad eggs will start to smell off...

Smells fine, not rotten or anything. But there's no veins and it doesn't look anything like my other egg on day 14. They started Incubating same day

 

[yakitori]

hmm...I’m not sure, maybe mark the air sac and see if it makes any progress....

 

[FarmFullOfFowl]

How did the strange eggs progress? I just posted a thread https://www.backyardchickens.com/threads/candling-help.1475612/#post-24585973 and I have two goose eggs with a similar situation. I was told to not give up on those and to see where they were at the next candling. How did yours end up?

 

[MotherDucker3]

How did the strange eggs progress? I just posted a thread https://www.backyardchickens.com/threads/candling-help.1475612/#post-24585973 and I have two goose eggs with a similar situation. I was told to not give up on those and to see where they were at the next candling. How did yours end up?

I still don't really know what was going on but it wasn't progressing. I suspect maybe it started developing and then stopped? In the end I removed it to make sure it didn't contaminate my developing egg

 

[Madhouse Pullet]

I still don't really know what was going on but it wasn't progressing. I suspect maybe it started developing and then stopped? In the end I removed it to make sure it didn't contaminate my developing egg

Any updates?