Halion Sonic SE 3 standalone okay, plugin doesn't work in Logic

I’ve just bought the Electric Bass from steinberg and I’m a logic pro user. However, I haven’t been able to get Halion Sonic SE 3 to open within Logic. Once I’ve been through all necessary steps of authorising and downloading, I can open Halion Sonic SE 3 as a standalone application on my mac. HOWEVER, once I open Logic I don’t get the usual scanning of a new plug in, and it doesn’t show up anywhere on my plug in manager. Does anyone have any thoughts about this?

I have contacted steinberg twice but their customer service is so slow, and all they told me to do was make sure I have the most up to date version downloaded (helpful). Any help would be greatly appreciated!

I’m not sure if it comes with AudioUnit support or if it’s VST only.

Logic Pro only supports AudioUnits.