Was in Vet Scalecaller last night with a group and we reset and went in a second time hoping it was just a bad instance, it was not. Two or three of us each time the frost mechanic came out were targeted by two not one frozen ground so as soon as you were broken free from the first the second would hit and kill you. Thirteen tries total between the two instances and it happened every time at least one usually two would get the double frozen ground and that is instant death.