Errors:
1. When carousel option is NOT selected then the items shown in the block will be 1 Item for 1-Column, 2 Items for 2-Column and 3 Items for full-width irrespective of the number selected

2. In full width, when the number is beyond three, then the rest of the items should not wrap to the next line but instead the block should display just the first three items

Please refer to the images for details: