need help with hat clipping with hair

Do this instead, without any extra steps:
- clone glasses, export the blend, click on lenses, check what cut number they have;
- open your blend and give the same cut to your transparent part, change that of opaque part if needed;
- import into the glasses package;
- in the warehouse choose Region map, then click on Edit entries;
- change Regiontype of Base to HairHatC and Layer to 20001;
- click on Copy, select the copied Entry, change HairHatC to HairHatA;
- it is done.