Some grassland areas within a natural wood multipolygon still render with trees over them. The forest is set as outer and the grass as inner. Am I missing a step somewhere?
Because the outer polygon has a “landuse=forest” tag on the polygon itself (not in the relation). It is also causing trees to be shown on top of the parking area a bit to the north east as well.
The landuse=forest tag was originally intended to be used for areas where trees were grown for commercial purposes (lumber, paper, etc.). If that is a recreational area as suggested by a trail through it being named “GSC Nature Trail” then that tag is probably not appropriate.