
The OFB baseball cap (hairhatballcapup_ultramarine etc) has a TXMT that overrides the BG baseball cap (hairhatballcapup_mesh etc) TXMT. I thought I’d downloaded a bogus default before I came across this post - http://modthesims.info/t/467621
The OFB black hat is really called “noir” in its TXMTs but there’s a spare TXMT called “black” that causes one part of the BG ponytail to reference the hair texture in “noir” and sets that TXMT up like the hair is a hat too.
So if you’ve also got this problem try this -
http://www.simfileshare.net/download/192112/