Raging Ally McCoist questioned the point in VAR after a goal for Rangers was controversially chalked off against Borussia Dortmund.
The Premiership champions ran riot again in the Europa League against the Bundesliga giants and Ryan Kent looked to have added the third of the night.
However, following consultation with the video assistant whistler Antonio Mateu Lahoz ruled out the goal citing a foul by Alfredo Morelos on Emre Can in the build up.