Does anyone know why this is doing this? I have a soft cloth I want to drape over some box primitives I made in iclone to simulate a sheet over a dentists chair. The cloth drapes okay over most of the boxes but the last two it keeps going through them. The only way I could finally make it work was to make the collision bound type for the last box either a capsule or a sphere. I spent a couple of hours trying to get this to work I don't get it. I also had to make the collision margin higher than normal for the objects including the sheet. And the solver frequency for the sheet 900.
Thanks.
3 images below.

Even worse, you can see right now the cloth is going right through the floor, even though I have the collision margin set really high at 20. I can't have this. Is this all because there can only be a minimum number of objects a soft cloth can interact with ( I'm just guessing )? I hope not.

Or look at this. I even tried exporting the box/chair as an obj and brought it back in. Then instead of using the box or capsule as the bound type I clicked on use self mesh. DOES NOT WORK. Except for the very top.

Well I just did some tests. I got rid of the chair and the cloth now interacts with the floor. Then brought the chair back in and it interacts with the chair but not with the floor again. It seems very limited it only interacts with the first few objects it comes in contact with. Unless I set them to capsule or sphere, which I CANNOT USE! Not happy at all.