After checking the points you raised with this video, the CTA team did see two issues:
1. (01:04) After creating the Character, it didn't load into composer which is a bug. We'll fix this issue in the future patch.
For now you will need to select the character and click the "Composer" button to enter the Composer mode, then follow the tutorial's instruction.
2. (01:20) When user imports an image to Composer the image bind in Root. This is the new spec of CTA 4, but doesn't affect the operating flow.
To try to avoid confusion, we'll add a note in the YouTube description.