I was following a tutorial to animate morphs in iClone. The tutorial was using iClone 7 and CC2, which I am using CC3 instead. I did as follows:
1. Load character in iClone
2. Press the "Edit in Character Creator" button
3. Apply morphs and export as iAvatar
4. Back to iClone, open Morph Creator, which sends the character there
5. Click the "+" button and load previously exported iAvatar
At this point I get an error message claiming that the bone scale doesn't match the character, and the morphs might not work as expected. Indeed the morphs didn't work as expected.

I wonder why this happens? Any ideas?