Minimap Looks Like Complete Nonsense

I got on Temple of Decay II in Ritual and this silliness appeared before me:



Not a lot to say, it kinda speaks for itself. It looks like blue spaghetti and doesn't reflect the map at all, as far as I can tell. Here's more of it filled out:


I'm running on an R9 280, 16gb of RAM, and Windows 7.

Edit: Second Serving