Hello @vdubbervan,
Thanks for writing to us.
Border radius is no longer being attributed to the legacy advanced columns block.
The border-radius issue has since been fixed in the latest version 2.0.11, please ensure you have the latest update installed. If the border radius still doesn't show then, please be sure to regenerate the assets. We do this automatically after the plugin is updated, but just to be sure, go to "Spectra > Settings > Asset Generation > Regenerate Assets" and press the button.
Also, empty cache and hard reload while on the editor screen. Here’s how: https://share.bsf.io/2NumNvZ2.
Responsive visibility is also no working for any block unless hide for mobile is selected.
This is a known issue and the developers are currently working on a fix which will be available on the next release.
Please let us know whether you have any other queries.