I'm using r69001 of omen. I uninstalled it, and all the files, and cleared my settings using the updater, then reinstalled today to see if that fixed the problem. It doesn't. All libs appear current.
I switched to IceHUD to test, and Omen works just fine with that. If I disable DaHUD, Omen works fine. If I enable DaHUD, Omen runs just fine but shows no threat for anyone in the raid, and no one can see me on their omen either.