What initially seemed to be a bug that meant Omen could teleport out of spawn during the buy phase now seems to be part of a larger issue with Omen after the update. As a result Omen has been disabled until a fix has be found. The official Valorant statement from Valorant states that they hope to have a fix for Omen in the next day or so.
What we thought was a map bug for Omen teleporting past the spawn barriers... is actually an issue with Omen, so we're disabling him until we have a _real_ fix. Which is hopefully tomorrow.— VALORANT (@PlayVALORANT) September 3, 2020
Sorry for all of the disruptions.