December 2020
@DJGeoRob If the same problem happened when you played forward, try patching and then reverting back to that same save point. Today's patch is supposed to have fixed the issue for new saves, or those that newly go through Winterfest, although older saves will continue to be affected for a while.
December 2020
@puzzlezaddict My game is running smoothly again after the Dec 8 patch.
THANK YOU SO MUCH