The Coming of Dawn Challenge Bug

[Joe Dagwan]

First off I completed the Coming of Dawn challenge where you complete Dawn solo on Legendary.

 

But for some reason I didn't get the Challenge completed.

 

Could this be because my internet connection kept going on and off?

 

I even have pictures of where it says I have completed the mission on solo, with legendary.

 

 

Edit: Nevermind, just did it for the THIRD time, and it actually worked.