I’m going for a dismemberment system and while preparing the test mesh I stumbled upon a weird issue with the Weights Profiles feature. The screenshot below shows the issue - when I’m activating Weight Profile and breaking the constraint - one of the vertices picks up some weight from the arm and thus stretches with it.
Notice how the character marked with green doesn’t have this issue. The weird part is - this character without the issue is the same FBX I used for the Weights Profile of a character, that is marked with Red here. So when not used as Weight Profile - it behaves as expected.
What I’ve tried so far:
- Deleting the faces around this vertex, but the issue just reappears on the neighboring vertices.
- I made sure vertex weights are normalized after touch up of a Weight Profile skin
- As mentioned above - tried to import and use the Weight Profile skin as a separate mesh, which works exactly like it should
This looks like either some checkbox I missed or actually an engine bug to me. The source file for a Wieght Profile is exactly the same as for the Skeletal Mesh itself, just vertex weights around the area of dismemberment touched up. Below you can see weights on the problematic vertex both for source and Weight Profile skins
The BP side of things:
I’m using vanilla 5.3. Any ideas and tips are highly welcome!