Valorant Patch 4.04 brought us the Icebox change and some changes to controllers.

Omen had some changes, with a faster Shadow Step and different Dark Cover numbers, but nowhere was it mentioned that his ability to teleport has been changed and his options limited.

Take a look at these images and you may notice that Omen cannot teleport through grates/bars. Depending on how much Omen you play, you may not know this, but these were all possible, yet for several months have been removed as an option for Omen.

This was not the intended change, so seems to me like an unfortunate integration issue of mechanics, and especially since it was not acknowledged, it seems like a bug that has been overlooked for over half a year.

Riot, please fix.