Hello,
in my case, very positive feedback.
I was about to open a thread, and you fixed my (long pending issue) before I could open it
my issue was reproduceable strangely with some hair brands : small hair on the forehead was not visible ( like behind an alpha ) , and when activating old meshoptimizer, then it was a mess of straight lines . So reproducable that I could guess the hair brand (doux, and others) only by this glitch.
The new version completely fixes the issue. Thanks !