Hi
I created an example row with multiple columns, within the first column I added a row of 2 columns
on the parent row I set columns to 1 column per row on mobile
on the child row I set columns to 2 column per row on mobile
the parent row overrides the child row, but only on the mobile view I think
I’ll add some screen shots below
Howdy, @scotbaston! I think I’m following here on the issue. I recreated something similar that seems to be working as expected for me. It is made up of Row 1 with 2 columns (green) that are 50% / 50%, but go to 100% on the SM breakpoint. Then there is Row 2 with 2 columns (pink) that are 50% / 50% and stay so across all breakpoints. You’ll see in the video that I step through each breakpoint control for each Row:
https://www.dropbox.com/s/nxb7y7p2a542ywx/example.mp4?dl=0
In your example above, did you make sure to double-check all breakpoints for the Rows that they are set to what you expect?
Let me know if that helps!
For some reason that link above won’t render here in Discourse or open up in the browser, so you may need to copy and paste it manually, haha.
Hi @kory
here is my response video, showing things a little different
on the preview it all works, on the actual live screen the columns don’t switch down
happy to give you access to the test site if you want
Best wishes
Scot
@scotbaston, after looking into this a bit more, I believe we’ve uncovered a CSS generation error when we get into some particular nested patterns. We have confirmed this and will look into it.
@scotbaston…scratch that…I literally just found the bug and fixed it. 
This will be out in the next release.
Yay! and thanks for putting in the time for a fix
sorry for the delay getting back to you but you seem to be on the same timezone as my cats 
No problem! 
The fix was in beta two that we pushed out while your cat was roaming around. 
Thanks,
I’ll double check that the changes work for me
Sounds good! Thank you.