I have created 6 columns in a row container so that three appear in row 1 and three in row 2.
In row 1 there is an additional 20px before column 1
Row two displays correclty
Testing
enabled the preview → no community plugin.
I then uninstalled each plugin in turn and retested the page with a normal preview.
I did this for every plugin and when the MaterilaizeCSS plugin was uninstalled the problem is resolved.
I originally logged this in the bubble.io forum and then a bug.
Extra gap before first column - New Responsive Engine - Bubble Forum
Bubble support informed me it was a plugin issue, which I have confirmed.
Can you advise if this is a known problem or if there is a workaround?