Bartosz Frankowski and Tomasz Musial were replaced by UEFA just before the match in Lublin, Poland.
According to reports, Polish police were involved in an incident involving the referees on the eve of the game. UEFA has confirmed that the Polish FA will be conducting a full investigation into the matter.
It's important to note that Dynamo Kyiv is playing its 'home' matches in Poland due to the ongoing conflict in Ukraine. The return leg of the tie will be held at Rangers' Hampden Park stadium. The winner of this round will face either RB Salzburg or Twente in the next stage of the Champions League qualifying process.