I have created a new grid layout but it does not seem to scale correctly on mobile screens.
Please see this screen shot of the grid at 425px: https://pasteboard.co/JviiBsv.png
It is forcing the thumbnail container to 481px wide - any idea why?
This is the layout settings I am using: https://pasteboard.co/Jvij0c8.png
This is the page the grid is being used on: