[Gameplay][Bug][Blitz Mode] Pyke's Ult Ignores GA in Blitz Mode

During my Blitz game, I was playing Pyke. Opponent team received GA buff from winning the scuttle race event. I was given an opportunity to 1 shot ult enemy Jinx(still has the GA buff). Since she had the GA, my plan was to proc her GA using my ult, wait for her to revive then get the kill. However, instead she died without even using the buff. I thought the buff ran off, but other teammate still had the GA. After she revived, she didn't have GA anymore, but her teammate still had it.

This is the link for that game: https://matchhistory.na.leagueoflegends.com/en/#match-details/NA1/2851568907/209401727?tab=overview

Thanks