Hi @websitewalrus
The get_sub_field() does not accept a post_id parameter, please assign this to the have_rows() like so:
// check if the repeater field has rows of data
if( have_rows('repeater_field_name','22283') ):
// loop through the rows of data
while ( have_rows('repeater_field_name','22283') ) : the_row();
$regions2 = get_sub_field('regions_list');
endwhile;
else :
// no rows found
endif;