Google Chrome 68.0.3440.106 (but tested both on Safari and Firefox)
I created a custom layout for mobile version with two full bleed images.
I removed the row gap for each image row but...
There still is a weird blank space after the row...
It doesn't happens in desktop version!
By inspecting it in Google Chrome I can see that this weird space is inherited from .lg-column-wrap but it doesn't seems to be a margin/padding/border.
Thanks for your help