I get the feeling this question has already been asked before.

But I wanted to bring it up again to report on it.

For many years Polar Halos have this strange visual bug whenever the player is in a cooling chamber I tested it with my guild hall too.

The Visual bug causes the halo to be overly too bright.
It doesn't seem to be tied to the Snowy weather environment more or less the stage. This also happens on Poison themed stages too.