Ok. I have used it on several maps, but same issues on every map i have played on. I hope you get it fixed. To bad if you have to remove the snow, but better to not have snow on it than to have snow which is way off. If you are unsure about the snow mask, maybe you could have tried to reach out to some of the other modders and ask if they have any suggestions.
I have asked, this is a first. It is actually not really allowed (a Gray area}. In all the testing it worked just fine. Now all of a sudden after the updates this started happening. I cannot submit an update for 2 weeks. Giants will also be out of the office for about 2 weeks for Christmas as well. So an update will not be until the new year. Curiosity question, do you play on PC or Console?