Please check to make sure that the AML Template is not set to Hide in Scene Manager. When an object is set to Hide you will only see the yellow selection frame. Also make sure it is not being hidden in a floor prop. If you are using a floor prop try raising the AML Template on the Z axis a little (or lower the floor accordingly).If the problem still exists after you have checked this then please contact Support using the link below. They will be able to help you further with this problem.
http://www.reallusion.com/CustomerSupport/User/QForm.aspx
Also please remember to ensure that your version of iClone is updated to the latest available.