Edit Container Layout
1. Install standard C5 with Elemental
2. On home page Edit Container Layout for columns below slider
3. Adjust each of the columns to make different
4. Click update layout
5. Publish changes
6. Columns have not changed even after Clear Cache
I can confirm this.
Have you checked the bug tracker to see if others are experiencing this issue? If no one has reported this issue, I recommend reporting it and including the steps required to repeat the error.
concrete5 bug tracker