Closed
Solved
Layout Group not render in Designer Studio
Preview and portal all view normal. When this happened I didn't notice.
Rolling back through history also does not result in visualization. How do I get a section preview back?

Hi Alexey,
I think the section rule is corrupted, that's why you are unable to see anything. I have faced the same issue with repeating grid sometime back, please check the link for discussion.
https://collaborate.pega.com/question/repeating-grid-becoming-empty-without-showing-any-columns-or-fields-developer-portal
And there was no suggestion for that, so I think you have to save as the old rule again and update it accordingly.
Thanks,
Venkat