Looking to use a repeater inside a group in Advanced Custom Fields? All you need is to while through your group and then your repeater within it.
Use a loop within your group's loop
In order to loop through a repeater located inside a group, you should loop through the group and then your repeater within this group’s loop.
while ( have_rows( 'your_group' ) ) : the_row(); while ( have_rows( 'your_repeater' ) ) : the_row(); the_sub_field( 'your_repeater_key' ); endwhile; endwhile;