I was able to reproduce the "clothing" problem.
FeedBack Tracker Issue #839:
http://www.reallusion.com/FeedBackTracker/Issue/problem-with-clone-cloth/#issue_commentsMy interpretation is that it is simply a different manifestation of the "head" issue, which I recreated by swapping out the torso, and reported here:
https://forum.reallusion.com/FindPost309467.aspxIn fact, the "head" issue is really a "torso" issue, based on what I'm seeing. (I explain that below, in "Further Analysis" paragraph.) The results are extremely similar. A couple of mesh polygons - always in the BASE OF THE LEFT SIDE OF THE NECK - are broken, with a couple of the vertices getting attached to somewhere else, such as the left foot or the left wrist. If you move the hand, you will see the polygon follows the hand, so it's not simply floating out in space.
I'm not sure the problem behaves 100% consistently, but I was able to reproduce it quickly and easily. If this post doesn't help Reallusion, I don't know what will.
HOW I QUICKLY DUPLICATED THE ISSUE:1) First, install a free T-Shirt clothing pack
Other clothing options may also cause the problem, but this way we are all doing the same thing.
http://city.reallusion.com/ContentPreview.aspx?i=JICa5e02fdb278a2ff51&Refer=52) Start a new iC6 project
3) Add a G5 character - I used "Chuck" initially, and also duplicated the problem using "Gywnn" (Fig 1)
4) DRAG a new T-shirt onto the avatar (Fig 2)
5) Keep an eye on the neck area
6) Just work your way down the list of T-shirts - If it doesn't break the first time (thought it might), try the next shirt, and the one after that...
7) After only a few shirt changes, you should see something odd in the neck (Fig 3)
FURTHER ANALYSIS:The problem mesh is actually the RL_Upper (torso) mesh... AND... hand or foot (that I've seen so far).When observing the problem, I selected the RL_Upper mesh and lowered the strength of the Diffuse texture (turning it white), and that made it clear that the broken polygon was actually part of the torso, not the head. (Fig 4).
You can also see that it's joining with another mesh at the mid-point, approximately. When I made the RL_Upper mesh pale, the bottom half of the "strand" connected to the foot stayed flesh colored, and is part of the RL_Lower mesh. (Fig 5 and Fig 6)
ADDITIONAL OBSERVATON:I always notice the problem in the same area (left jugular). It might even be the same polygons. Remember it's actually the top of the torso (RL_Upper mesh), not part of the head. Sometimes it attaches to the foot, or the hand, and maybe the knee, but always on the
left when I've seen it. In the case of a foot connection, it was five polygons. (Fig 7)
I even managed to make two breaks simultaneously, simply by changing the shirt multiple times. (Fig 8)
Sometimes changing the shirt actually restores (fixes) the broken polygons.
ONE FINAL OBSERVATION:I do not thing the shirts are at fault. The same shirt may work, may connect to the foot, or connect to the hand. So it's not like the yellow shirt has specific behavior related to it. I also have not found a pattern to how it breaks, but I'll leave that to the Reallusion developers to figure out.
FIG 1
Fig 2
Fig 3
Fig 4
Fig 5
Fig 6
Fig 7
Fig 8
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