Hi
this is the problems of the grids, there is always a gutter between elements
What I see now, after using a grid (for the first time in all my developments), is that it does not fit the users needs
I wanted to test it one time in my dev life, this is done
May be that in the v2 of pagebuilder I will remove the grid for a custom home made system, but for now you use keep it. The only workaround that you can test is using negative margins on the blocks
CEd