When u try to get a deathless streak in AW and this happens..

AyrusSeth

I boosted and fought jabari (miniboss) in powersnack, and went in to fight mixmaster korg with boosts on and the game hit me in the face with the loading screen, it lasted for ABT 3 to 5 mins, i turned of the internet and turned it on, ta da, 50 percent of my health gone and gave out a kill..
Just why?? Never faced this issue during previous war seasons,..