Need help cloth simulation

Hi, I made a skirt with 3ds max using apex plug-in, I saw some videos which explained how to make the skirt to collide with thighs but when I import the .fbx and the skirt.apx when I apply it to my character and I play a walking animation collisions don’t works. I followed step by step all tutorials I found about apex cloth importing in ue4 but the problem persist. Are there other ways to do it instead of using capsules in 3ds max like here:Basic Unreal Engine 4 Apex Cloth - YouTube ?