If increasing the Padding, use the units "em" or "px", for example "1em" or "20px".
When "15px" is given against the Padding field & the bullet type is "disc" in the Fancy Bullets macro, the minimum space between the left margin and the bullet. The bullets cannot be flushed left beyond this point. If a value less than 12px is specified, the bullets will disappear and from 12px to 14px the bullets are only partially visible. If the Padding value is anything more than 15px the bullets keep moving away from the left margin.
The Padding needs to be adjusted based on the bullet type.