Is this air sac popped? (new to incubating)

[WallacetheKhakiCampbell]

Hello! This is my very first tome incubating/candling any eggs. I am decided if I should incubate this quail egg with the rest but I can't tell if maybe the air sac is popped or burst somehow. Can someone answer this? Thank you!!! (quail egg)

 

[MGG]

I don't see anything abnormal.