The Christmas hat is a nice addition!
But I'm seeing holes on the left side of the hat that are messing up my slicer and settings. I'm using cura-lulzbot 3.2.27 with a Taz 6.
In addition to the holes it treats the head and hat separately as non-solid, with no infill. I've posted a picture here.
Maybe the hat is too thin on that side to be rendered by my printer?