Page Builder – images width in mobile

I have a slight issue where images in mobile are not displaying at the % width set, they are filling the full width of the row.

Please see https://www.pallisers.myzen.co.uk/new/
e.g. In mobile view, the Deutz Fahr tractor and combine images fill the row, however they should be 33.3% wide each (with a 16.7% gap either side) Making them display the same width as the images for the Kubota tractor, compact tractor and utlity vehicle.

“Bound” is already ticked for all. Ticking “Full Width” for the Deutz Fahr tractor and combine does not seem to make any difference.

Any help much appreciated. Thank you.