Can't load NEW CREATED LAYOUT after creating in backend

Based on Layout configuration video,
I can't load NEW CREATED LAYOUT after creating in backend at: Position & Responsive Configuration
Re-procedure:
Step 1: Select Purity III - Default from template manager
Step 2: At Position & Responsive Configuration area, select Default, Select "Save a copy", fill in: "Default Cloned"
Step 3: I re-config on default cloned.
Step 4: Press "Save" at the top-left page.

Reload page, and I can't get "Default cloned".
Thanks