papyrus Event Hook Causing Registered Function to Fire Twice

[Skipper2100]

Hi, Still don't know where to go with these questions, here seems fine.

 

I have a PlayerTrack hook set up to a function, and I'm getting a weird behavour where the function seems to be called twice, the first time being with some strange null version of the script object or something, I'm not really sure what or where exactly, but all properties come up None, and the second time it fires with the correct properties and outcome. I have no idea where to even begin with this, except that I have the notion that it's not to do with the way I've registered the event hook, as I have a pre-anim hook that's registered in the same manner and working as expected.

 

But who knows. Here's a log.

Papyrus.0.log