Unable to pick up item

After fighting this boss, I'm unable to pickup or interact with anything on this patch of snow. Not only can I not pickup the Head of the Winter wolf, my unearth will not raise the dead wolves around me and I can't interact with a town portal - only on the snow. Off the snow in any direction, I can interact again. Generally I wouldn't report about loot, but that Head of the Winter Wolf is a "once per character" thing.

Would you consider hooking me up with this item that I did earn?

Thank you!!

https://imgur.com/a/n6nF6Hd