Can not render section message while "Defer load contents" checkbox is selected
I'm in 7.2.1.
In Grid Repeat Layout in Operations tab for Row editing I have Master-detail selected. There I have flow action specified which references a section SampleSection that contains dynamic layout with "Defer load contents" checkbox selected.
When I display repeat grid and expand a row to see SampleSection section, instead of seeing it there is a text "Can not render section". Once I uncheck "Defer load contents" checkbox everything works fine.
And idea why?