Notifiers DONT WORK!

Hello,
I have been racking my brain on this one. I am working with a developer who is using a float to ‘evaluate’ an animation using ‘explicit time’. I’ve tried everything I possible to debug why I cannot use custom, sound, or particle notifiers. I’m at the point where I built out a round a bout logic system to trigger a bunch of sounds, but it is not practical at all. Does anyone know if this is a bug, or is it just the way Unreal Engine works for some reason. If I can’t get the notifiers is there at least a way to get the current frame animation frame??? Thanks for any help!