If you're standing in a fire which is being extinguished by an Ice Flingomatic while playing as Willow, you're going to have a bad time.
It'll lower your temperature to the point you take freezing damage and also freeze you in place.
I've not noticed this happening with any other character than Willow.
Video enclosed in the spoiler-box.
Steps to Reproduce
Play as Willow and stand in a fire which is perpetually being extinguished by an Ice Flingomatic.
This issue has been fixed in either a future version or updated in a previous version.