Hi,
the problem is on my local site, so I have no public URL.
I don't know why, but I cannot upload any image so I describe the problem here:
If I select a column with no margin (or padding) set for "laptop," I can't set the margin (or padding) for other screen resolutions (e.g. "mobile") until I change the "laptop" margin first.
It seems that to enter margin (or padding) settings for other resolutions (e.g., "mobile"), I first need to "unlock" them by entering values in the "laptop" view.
I think you can simulate this situation in a short time.
If you need a screenshot or better a shot video, please tell me how to share it to you.
Thank you