No collsion Detect

[Lothar1952]

Attention....When you create a collision object to put it in source object, the fact remains that for now fume fx does not read the thickness of a polygon that can be created with Cloth surface

that´s what I said. Cloth surface object seems not to give correct information to fume. But as a workaround, you might create an instance of that cloth object and use that as a collider. This will work and you have your thickness intact ...