Make sure you're using the M3 Blank figure as the source figure. CC is the best, IMO, for unimesh charactors but tends to be an acquired skill when converting to other than unimesh. It still does a good job, it's just not "one-click". I don't have or use David, but I don't think it's a unimesh figure, maybe someone can clarify that further. Might be a problem with the grouping.