I have the same problem that victor-tor originally asked about. For whatever its worth, with version 2.0.17 I was unsuccessful when I attempted to double-reverse the normals flip, by importing the flawed reversed-normals part into TSRW and exporting it back into a sims3pack. That does not necessarily mean that a double-reverse solution is not possible, but it didn’t work when I tried it.
What I am writing about is that I have now updated to the new TSRW version 2.0.22.0 and the problem persists (although possibly that could be an artifact of my using a Milkshape mesh that I originally created from a top imported from TSRW version 2.0.17.
I have consulted the TSRW tickets page at
http://trac.thesimsr...&order=priority(I hope the above URL hotlinks correctly.)
That page has future milestones for bug fixes and also lists items that are not intended to be fixed. I had hoped to determine whether this item is something the developers planned to fix (or were capable of fixing). But I don’t recognize an item that seems to match the muscle normals problem. Do you recognize which ticket number corresponds to this problem? If it is not listed, does that mean that the problem is not on the developers radar screen?
Finally, thanks for the wealth of helpful information you have provided in this forum. I am awed by your patience and dedication in helping people here.
Moss