Hey Angel,
If it's not showing up in your Profiler, then I'd suspect it's not getting called from Unity.
Did you try this with a new scene and just 1x game object with a collider? I'm asking, cause other game objects might "block" the gameobject you've attached the AkEvent to, even if the Mesh Renderer is not visible. The "AkTriggerMouseEnter" function is using the OnMouseEnter() function, that you can read more about here -
https://docs.unity3d.com/ScriptReference/MonoBehaviour.OnMouseEnter.html
Let us know if this helps :)