Probly get more response in one of the grow forums.
your prob could b a number of things .The type of cuting u took was it soft wood tip,semi hard wood or a fat hard stem.How long r the cutings,how many leaves did u leave on .U can reduce water los in the cuting by cuting the leaves in half.Do u have bottom heat.Cloning should b easy with dope.Im with gtc i have had great success doing them on my window ledge provideing its not a cold time of the year.Hope this helps man happy growing.......